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Name: Rebekah
Status: Student
Age: 14
Location: N/A
Country: N/A
Date: N/A 


Question:
How does coastal tidal action affect the water levels in surficial aquifer wells close to the seashore?
Is there any literature on this subject available?
In my area there is a 5-8 foot difference between low and high tides depending upon the month. Would this make the surface of water in shallow wells respond up and down in a corresponding manner?
Thanks for your help, Rebekah



Replies:
There would be a change in the hydrostatic head pressure if the aquifer and the sea water were connected somehow underground and that could cause the water level in surface wells. However, since the well water is not salty [presumably] there must be impermeable strata of some kind of rock separating the well water from the sea water.

Vince Calder



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