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Which of the following would NOT reduce a well's yield?

  • A.a fall in the regional water table
  • B.increasing the aquifer's transmissivity
  • C.interference from a neighbouring pumping well
  • D.clogging of the well screen

Answer: B

Correct answer: increasing the aquifer’s transmissivity

Higher transmissivity means the aquifer delivers water to the well more readily, so the yield for a given drawdown rises. The other three all reduce it: a falling water table reduces the saturated thickness and hence the transmissivity, a neighbouring well’s cone of depression adds to the drawdown, and a clogged screen raises the well losses.

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