Sounds like you got it covered. Here's some info that might be helpful in the fututre:
- GA Amendments to IPC (hardly anything changed): http://www.dca.state.ga.us/developme..._effective.pdf
IPC allows the following for Water Service Pipe:
6. Several flavors of PEX
7. Ductile iron
10. PE (several flavors)
However, only the following is allowed for Water Distribution Pipe:
4. Several flavors of PEX
10. PE (only PE-AL-PE)
So no PVC or PE (except of the composite PE listed). I have seen nothing directly in IPC about PVC (or other materials) being outside/exposed to sun. However, they define the "Water Service Pipe" as being underground and outside of the structure. If the material is not allowed to be a "Water Distribution Pipe", then the "Water Service Pipe" must terminate at/before the full open valve located at the entrance to the structure.
In addition to PVC not be listed as a "water distribution pipe", there is an additional restriction for hot water that says that the pipe must have a pressure rating of at least 100 psi at 180F (which PVC would fail that test as well).