A good option is PEX tubing with engineered plastic fittings, such as PolyAlloy PEX Crimp Fittings, to avoid the potential corrosion over timefrom the more acidic water in your area.
PEX tubing can be home-run to a plastic manifold, such as a MANABLOC, so you can shut off one area at a time, to help with future maintenance.
For more information:
Read "I'm seeking bids to repipe my house. PVC is recommended by all three plumbing bidders. Is it safe?" a Q&A answered by Michael Heacock.