The wet Shuttle ET

A few days back, workers accidentally bumped the ET for Atlantis and
left a small scratch on it. They decided to fix this, but have noted
water is now coming out of the ET's foam that apparently got into the
foam during hurricane Katrina.
Was the tank on Discovery also at the Michoud facility during the Hurricane?
http://www.cfnews13.com/StoryHeadline.aspx?id=16685
Because if it was, and water got into the foam, and that water freezes
when they tank it up....

Pat