ANSWER all clearly short simple answers 1 What is meant by s

ANSWER all clearly short simple answers

1- What is meant by steady state drawdown in groundwater pumping wells? 2- What is meant by pumping cone of depression? 3- Why do drawdown derived equations fail to estimate drawdowns exactly next to the pumping location? 4- How can we determine the drawdown caused by multiple wells?

Solution

1) As pumping continues, the water table gets lowered further until drawdown becomes steady. This is known as Steady state drawdown.

2) When water is pumped from well, water level is lowered and hydraulic gradient will follow the inverted cone shape, known as Cone of depression.

3) Drawdown derived equations fail to estimate drawdowns exactly next to the pumping location, because of high drawdown.

4) We can determine the drawdown caused by mutliple wells as \" sum of the drawdown caused by individual wells\".