Swimming team for 11 year old in Berkeley

Hi, I am looking for a swimming team in Berkeley (we travel mainly by bike) for my daughter, who is 11, to train with for the duration of our stay (four months). My daughter swims at a competitive level in our home country (Switzerland) and wants to be able to train here at a similar pace (4-5 times a week) as in Switzerland so that she does not lose her technique and her racing skills. Do you know a local swimming team with which she could train? Thank in advance.