Well I never. Just read an interesting report about how Aguadulce owes its name to the incredibly pure springwater found in the area. Old timers remember how if you dug down in the sand on the beach you could drink the water found there.
An investigation by the National Institute of Colonisation in 1960 found an underground flow of water straight from the Sierra Nevada down to the beach there, and recommended that the whole area be “colonised” for agriculture. Remember, this was the time of central Fascist planning. However, the whole ideal of agriculture was pushed out by tourism from Almeria – far more profitable – and the farms went elsewhere.
Nowadays, of course, the groundwaters’ as polluted as anywhere else.