Under California Health and Safety Code, what is defined as an underground storage tank?

An underground storage tank is specifically defined as a tank and any connected piping that is completely buried underground. This definition is crucial because it outlines the requirements and regulations that apply to tanks that store hazardous substances. Tanks that are located above ground, even if they have piping, do not meet the criteria for underground storage and therefore fall under different regulations. Similarly, the fact that a tank is partially buried does not classify it as an underground storage tank according to the legal definition. Additionally, tank size alone, such as being under 10,000 gallons, is not a defining characteristic of an underground storage tank. The focus is primarily on whether the tank is located completely underground and has piping that is also underground, making this option the correct interpretation of the definition under the California Health and Safety Code.