I'm a do it yourself kind of person. I need to know information regarding new plumbing before pouring cement foundation. Would appreciate any helpful information.

Hire a licensed plumber. If not for the complete plumbing job, at least for the under concrete rough in. Or not. Completely your choice. Good luck.

Sorry guys, couldn't resist myself.

I agree with Lee (MGD) hire a plumber. Get a good one. This is one thing you don't want to screw up, cost too much to fix if you do.

I'm a do it yourself kind of person
Plumber will probably let you help dig if you want to. That way you can keep an eye on what he is doing.