What is defined as a "regulated substance" in the context of USTs?

In the context of Underground Storage Tanks (USTs), a "regulated substance" refers to any liquid that has the potential to contaminate state waters. This definition is crucial as it highlights the focus on protecting the environment, particularly water resources, from harmful substances that might leak from USTs.

Regulated substances encompass fuels like gasoline, diesel, and other hazardous liquids that could pose a risk to groundwater and surface water if they were to escape from the tank. Understanding what constitutes a regulated substance is essential for operators to ensure compliance with environmental regulations and to implement appropriate safety measures to prevent contamination.

The concept of regulated substances plays a vital role in the regulation of USTs. By identifying and managing these substances, operators can help mitigate environmental risks and ensure safe handling and storage practices. This knowledge is foundational for any UST designated operator working to maintain regulatory compliance and protect public health.