(KCEN) -- Employees at the Brazos River Authority were forced out by dangerous black mold.
The last of 89 workers cleared out their belongings Thursday and now they'll work in temporary trailers outside the building and at different offices in the area.
It may come as a surprise to some, since the building is only 11-years-old, but it has a history of leaks.
In 2011, the roof was repaired after it leaked and the planned maintenance that led to the discovery of the mold, resulted from leaky windows and doors.
Mold was found inside the walls, board rooms and conference room, some of those areas harboring the more dangerous black mold.
Removal and clean-up is scheduled to begin Saturday and expected to last for two weeks, however all the repairs and renovations aren't expected to be complete until January.
The Brazos River Authority doesn't yet know how much the repairs will cost but has a budget of $3 million to work with.
The money will come from an emergency contingency fund.