I am designing a small water distribution system to supply potable
water to a couple of dozen buildings. I am trying to decide between PVC
and PE (Polyethylene) piping. Can anyone in this group comment on the
pros and cons of using either of these pipe materials for this
application?

Some more details on the application:
-The pipe will be almost entirely burried. Only risers coming out of
the ground to connect to building supply points will be exposed to UV
sunlight.
-The location is in a desert environment. Max ambient air temperature
of 50 C (122 F). Min ambient air temperature of 0 C (32 F). Most days
are sunny all day.

Any comments would be appreciated.

-Jonathan Klein