The sat pics have the scale on the top left, but probably easiest to super-impose one on top of the other.
I took another image of both at the same scale ( The zoom option is on the URL as well ), then downloaded each one, cut out from Sal de Vida and super-imposed it on Olaroz.
This is what I came up with:
View attachment 4331542
Of course, the Sal de Vida pond lining is just the first 2 ponds but there will be more.