"Memorial Day Weekend is a great time to take a dip in the pool. Just ask these raccoons.Jimmy Sena of Huntington Beach says he woke up to his dog “going craz..."
Chlorine kills just about everything - however, not Baylisascaris (roundworm parasite) which Raccoons commonly have and can be transferred via their poop.
You'd have to clean the pool (filter for a day or so, backwash the filter, etc ) or drain and clean.
Granted, to become infected you'd have to swallow more than a bit of it - but better safe than sorry.
Edit - added link from the CDC with this information
Link here