Groundwater Treatment Calculator

Size a pump-and-treat system from plume dimensions, aquifer properties, and cleanup targets.

Plume length (m)

Plume width (m)

Saturated thickness (m)

Effective porosity

Hydraulic conductivity (m/s)

Hydraulic gradient

Initial concentration (µg/L)

Target concentration (µg/L)

Retardation factor

Tab to move between fields

Required pump rate (GPM)

5.94

Total water to treat (M gal)

83.98

Estimated cleanup time (years)

26.9

Pore volume (m³)30,000

Pore volume (gallons)7,925,160

Groundwater velocity (m/day)0.14

Pump rate (m³/day)32.4

Pore volumes to flush10.6

Plume travel time (days)1,388.9

How to Use This Calculator

Enter plume dimensions (length, width, saturated thickness in meters) from site investigation data.
Set effective porosity and hydraulic conductivity (m/s) from aquifer testing or boring logs.
Enter hydraulic gradient and initial and target contaminant concentrations.
Input the retardation factor (1.0 for non-sorbing contaminants, higher for organics).
Review required pump rate (GPM), pore volumes to flush, and estimated treatment duration.

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