The ultimate drawdown in a well measured at the designed rate Q of continuous pumping for a given period is different from the theoretical drawdown due to well losses. The total drawdown sw is made up of: (i) Head loss resulting from laminar flow in the formation (formation loss), (ii) Head loss resulting from the […]
How to Measure Well Losses? | Geography
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How to Measure the Water Level in a Well? | Ground Water | Geography
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Since the water level drops fast during the first one or two hours of the test, readings should be taken at short intervals which are gradually increased as the pumping continues. Fairly accurate measurements of water level can be made by using an electric sounder, by the wetted tape method (the steel tape is coloured […]