UMass officials and the State Division of Capital Asset Management have begun to asses the damage caused by torrential rains Wednesday morning at the Claire T. Carney Library at UMass Dartmouth.  The library is currently closed.  The worse flooding occurred on the fourth and fifth floors.  The university said late Friday, the flooding has not caused a serious mold problem.  Further details will be made available Monday by an independent firm brought in to assess possible health and safety hazards.  The library will be open Monday to senior staff members only.  They'll check out offices to make sure equipment is working.  Officials hope to reopen floors 1-4 on Tuesday.  The fifth floor of the library will remain closed till all repairs are complete.  University spokesman Robert Lamontange tells WBSM News, no library books were damaged by water during the episode.