UST Program - Leak Prevention - Frequently Asked Question #7

Answer: No, it is not necessarily a violation. There are various overfill prevention options outlined in the California Code of Regulations, Title 23, section 2635(b)(2) that require activation of an alarm. The purpose of this overfill alarm is to notify the UST owner/operator or delivery person when the fuel being delivered to the tank has reached a set capacity/level (e.g., 90% of capacity, etc.); therefore, the triggering of the alarm is not necessarily a violation. However, there may be a violation if the overfill alarm fails to activate or if the UST system is operated without a functional overfill prevention system.

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