[Governor Dinwiddie]

#22: "How far can it lean before it must be evacuated and the area cleared?"

One sign that the building should be cleared and condemned is that the
elevators will stop working as the tilt increases. Also utilities such as water
and sewer lines will start to fail.

[Keyhopper]

They’re already having plumbing issues.

[Lazamataz]

One sign that the building should be cleared and condemned is that the elevators will stop working as the tilt increases. Also utilities such as water and sewer lines will start to fail.

Another sign is when the building falls over.