Hi my name is ***** ***** I have been in the plumbing field for 20 years. I will be glad to help you today. The water could do a fair amount of damage. Most of the damage would be related to the damage to the flooring and wood structure. The wood could rot and could also grow mold. The moisture could also cause damage to the flooring and even the wall boards.
I have seen first-hand what damage this type of situation can cause. I can not comment much on structural issues besides what I've seen. Rotted floor joists for example. Over time floors will get springy and Flooring will crack but really I believe thelargest issue to be mold and mildew that will cause you and your family sickness. Maddening how easily this situation could have been avoided.