Two things, and both come from how the village was built. Palm Springs incorporated in 1957 on farmland with no permanent residents, and roughly 800 houses went up in the two years that followed. That is an unusually tight housing cohort, and it is now approaching seventy years old, which puts it squarely in the pre-1975 South Florida band where drain lines are cast iron rather than PVC.
The second thing is the ground. The original townsite was drawn around artificial lakes and canals dug in 1957 to promote drainage. Land that needed engineering to drain on the day it was platted has a shallow water table, and that is why water escaping a line under a slab travels through fill and surfaces somewhere other than the break.
Annexation from 1998 onward more than doubled the village, so a much newer cohort now sits beside the first. What is under your slab is a question about your house, not about the village.