Test Pumping

Test Pumping involves pumping of a well from a measured static water level at a known yield, and recording the rate and pattern by which the water level within the well changes.

Once a dynamic water level is reached, rate of inflow to the well equals the rate of pumping. Towards the end of the test a water sample is collected for chemical analysis. The duration of the test is 24 hours, with a further 8 hours for a recovery test. The results of the test enables the hydro geologist to calculate the best pumping rate, the installation depth, and the drawdown for a given discharge rate.