Michelle, thinking more about that Oley foundation article and your husband's case, it seems like it would be a bad idea for him to swim this summer because
1. his PEG is quite new--that article suggests that the PEG needs to be in for about 6 mos for there not to be significant leakage
2. From the chemo, his immune system is compromised and probably will be for a while which makes him unusally vulnerable to infection.
3. Also, like Markus said, he really should exposing his radiated neck and lower face to as little sun as possible - and being in a pool usually involves sun exposure.

Nelie