Wells & water/ CALCULATOR

Observed well water-level recovery

Convert a measured rise in a cylindrical well into equivalent volume and an average recovery observation.

Use the internal diameter over the section in which the level changed.
Starting depth to water minus later depth, both from the same reference point.
Time between the two documented water-level readings.
Equivalent recovered bore volume

70.69 L

Average observed recovery

1.18 L/min

A uniform cylindrical bore and two comparable water-level measurements. Recovery is commonly nonlinear and affected by prior pumping, nearby wells, aquifer storage and boundary conditions. This two-point bore-volume observation is not a sustainable-yield test.

Continue your calculation