how come the ground under lakes and rivers don’t drink up all the water but plain surface ground drinks up everything eventually?

Question

how come the ground under lakes and rivers don’t drink up all the water but plain surface ground drinks up everything eventually?

In: 214

Answer 1

I want to preface this with im not a geologist.

My understanding is that there is less porous rock beneath the lake for the water to drain into, combined with the porous rock that is beneath the lake already being saturated with water, then factor in rainfall, and water draining down from hills etc. The water is replenished faster than it can drain.