California ICC UST Inspector Practice Exam

What must be documented before placing a red tag on an underground storage tank?

1. Date of last fuel delivery

2. Product level

3. Last UST service technician who worked on the system

4. Reason(s) for red tag

The correct answer is: Product level

The correct answer highlights the necessity of documenting the product level before placing a red tag on an underground storage tank (UST). This is important because the product level provides essential information about the tank's current status and safety. When a UST is red-tagged, it signifies that it has been taken out of service or is not compliant with safety regulations. Knowing the product level helps inspectors assess potential risks, such as spill hazards or the presence of flammable materials, and determines the appropriate course of action for safe handling. Documenting factors like the date of last fuel delivery, the last UST service technician involved, and reasons for the red tag, while important in the overall inspection process, do not directly address the immediate safety implications of the tank’s contents. By focusing on the product level, inspectors can ensure a safer environment and uphold regulatory requirements before further actions are taken related to the red tag.