Leaking Copper Pipe in Slab

[Michael S.]

looking at potentially a disaster of a situation regarding copper pipes inside concrete slab.

-Home is 10 years old

-Copper pipe inside the concrete slab had a leak.

-Pinpoint leak was found (after digging through several feet of concrete, using ultrasound to find leak)

-Pipes appear to be pretty thoroughly corroded

Is this normal for copper pipes to corrode inside concrete slab?  Is it normal to run pipes through the concrete, rather than above it?  Was this a 1 in a million event, or will the rest of the copper piping fail eventually?  Unfortunately the builder is out of business now.  1 other home in the development had the same type of leak in the slab about 2 years ago.

I'm worried that I can't sell at any reasonable price because I would have to disclose the issue with the pipes, and by now word is probably getting around about the pipes being a liability in this development.

Thanks everyone in advance for the ideas...