PUMPING TEST

At WATERSTORM®, our Hydrogeologists determine the hydraulic characteristics of water-bearing formations, by conducting pumping tests. Pumping Test is conducted to examine the aquifer response, under controlled conditions, to the abstraction of water. The basic principle of a pumping test enables us to pump water from a well and measure the pumping rate and the drawdown in the well, then substitute these measurements into an appropriate formula and calculate the hydraulic characteristics of the aquifer. It is also called as aquifer tests for aquifer parameter evaluation. Groundwater is frequently chosen as the most suitable source of drinking water, supplies of which are brought to the surface by rehabilitating existing boreholes or drilling new ones. Pumping tests are a practical way of obtaining an idea of the borehole’s efficiency and its optimal production yield.

What is a Pumping Test ?
Pumping Test (Not Pump Test) consists of pumping groundwater from a well, usually at a constant rate, and measuring water levels in the pumped well and any nearby wells (observation wells) or surface water bodies during and after pumping.

A pumping test is a practical, reliable method of estimating well performance, well yield, the zone of influence of the well and aquifer characteristics (i.e., the aquifer’s ability to store and transmit water, aquifer extent, presence of boundary conditions and possible hydraulic connection to surface water).

Aquifer test and aquifer performance test (APT) are alternate designations for a pumping test. In petroleum engineering, a pumping test is referred to as a drawdown test.

Purpose of conducting Aquifer Tests:
Hydrogeological studies include determination of aquifer parameters by conducting pumping tests on dug / bore / tube wells and analysis of pumping test data.
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