Description

The principle of this method is quite simple. A hole is bored in the ground to a certain depth below the groundwater level and after a time the water in the hole will rise to the said water level. The water is consequently bailed out and the time it takes for a new water level to establish itself is recorded. With the help of formulae and/or monograms this rate of water rise can be translated to the average water permeability factor of the different strata of soil.

The depth of the bore hole is dependent upon the groundwater level and the thickness and the permeability of the successive layers in the ground profile.

Basically it contains: an Edelman- and a Riverside auger with an upper part and an extension rod, a bailer, measuring tape with holder and float, a filter and a stopwatch. The complete set can be transported in the field in a strong carrying bag. Suitable for measurements up to 2 or 5 meters.

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