Wow, how horrible to lose all that fabric. And everything else you may have lost. I'd hate to throw out all that fabric, couldn't you take it out to the back yard and use a garden hose to get the worse off and then throw it in one (or 3) of those large machines at the laundry mat?
And before people start yelling, I've never been in a flood where sewage was involved. I really am asking for the knowledge in case it ever happens to me. And I love fabric and hate to lose good fabric.