According to CP-201, what is a requirement for condensate traps?

• A. CARB-certified
• B. Capable of automatic evacuation of liquid
• C. Installed at least below the UST tank level
• D. Equipped with an alarm system in case of failure of the evacuation system

Answer: (C)

The requirement that condensate traps must be installed at least below the UST (Underground Storage Tank) tank level is essential for ensuring the proper functioning of the vapor recovery system. This positioning allows any liquid that accumulates in the trap to drain away due to gravity, preventing backflow into the vapor recovery system.

Condensate traps are designed to separate liquid from vapor, and if they are not installed below the tank level, it could lead to liquid retention and potential vapor saturation. This would compromise the efficiency of the vapor recovery system, which aims to minimize vapor emissions and ensure compliance with environmental regulations.

While the other choices present valuable features of condensate traps, the specific requirement regarding their installation height in relation to the UST tank level directly addresses operational effectiveness and compliance guidelines.