Unstable Floors Falling Debris Collapse Risk Requires Climbing Tight Entry Locked Entry Cameras Active Security Alarm Systems Frequent Patrols Asbestos Mold Contaminated Water Snakes

Unstable Floors Missing Stairs Falling Debris Open Shafts Collapse Risk Flooded Areas Requires Climbing Tight Entry Long Hike Locked Entry Cameras Frequent Patrols Contaminated Water

Flooded Areas