What is the main risk associated with aging fuel tanks?

The primary concern with aging fuel tanks is the possibility of leaks leading to contamination. Over time, the materials that compose fuel tanks can deteriorate due to environmental factors, prolonged exposure to fuels, and the effects of moisture. This degradation can create pathways for fuel to escape and contaminate surrounding soil and groundwater, posing significant environmental risks.

Leaking fuel can create hazards not only to the environment but also to human health, as fuel components may be toxic or harmful if they enter the ecosystem. Moreover, contamination can lead to expensive cleanup operations and regulatory concerns, making leakage a critical issue to manage in fuel tank maintenance.

While corrosion of tank walls and structural failure due to rust are also significant risks associated with aging fuel tanks, they are often contributing factors that may lead to the more catastrophic issue of leaking. Increased fuel volatility can be a concern, but it is less directly linked to the aging process of tanks compared to the risk of leaks.