Visible Shell Deformation & Distortion
- Bulging, denting, or collapse of the roof and walls.
- Often caused by extreme internal pressure, vacuum, or severe impacts.
- Indicates critical compromise of structural integrity.
Foundation Settlement & Base Cracking
- Uneven or excessive foundation settlement leads to structural stress.
- Monitor for cracks in concrete or tilting of the tank.
- Can cause wall tearing, catastrophic failure, and spills.
Material Degradation & Corrosion
- Severe corrosion at bottom or weld seams reduces wall thickness.
- Pitting, rust blisters, and stress corrosion cracking are warning signs.
- Indicates tank may no longer safely contain fuel.
Weld Seam Fractures & Leakage
- Cracks along weld seams from poor quality, defects, or thermal cycling.
- Any visible leakage or seepage requires immediate shutdown.
- Professional evaluation is mandatory.