What is the minimum thickness for steel tanks under Pennsylvania regulations?

The minimum thickness for steel tanks under Pennsylvania regulations is indeed 1/8 inch. This specification is crucial for ensuring the structural integrity and longevity of underground storage tanks (USTs), particularly those that will store hazardous substances. A thickness of 1/8 inch provides a balance between durability and cost-effectiveness while ensuring compliance with safety standards.

Thinner steel tanks would not offer sufficient resistance to corrosion and physical stress, thus increasing the risk of leaks or failures that could lead to environmental contamination. Regulations are designed not only to protect the tanks but also to safeguard public health and the environment from potential hazards associated with underground fuel storage. Therefore, maintaining a minimum thickness of 1/8 inch helps ensure that the tanks are robust enough to withstand the challenges they face underground.