Percolation rate: Measure the rate at which water is able to percolate through the soil and into the drainage system. This helps ensure that the system is able to effectively remove water from the soil and prevent flooding.

Percolation Rate Calculator

Time (minutes):

Initial Water Depth (inches):

Final Water Depth (inches):

Drainage Area (square feet):

To use the calculator, simply enter the time it takes for the water depth to change, the initial water depth, the final water depth, and the drainage area. The calculator will then calculate the percolation rate, which is the rate at which water is able to percolate through the soil and into the drainage system, in inches per hour per square foot.