How the NRC Brass Refuses to Recognize Costly Lessons of Fukushima - truthout

[PamW]

13. Depends on which tanks you are talking about

Throckmorton writes
Millstone Stations diesel tanks are where exactly?

The primary diesel fuel tanks at Millstone are inside the same buildings that house the diesel generators. Therefore, the tanks are protected. There are two tanks and each tank holds 13,500 gallons of diesel fuel. Those are the "Class I" tanks at Millstone.

Millstone has additional tank that holds 25,000 gallons of fuel that is outside and above ground( T-148 ). The outside tank is used to stage fuel delivery to the Class I tanks. The diesel fuel delivery truck refills the 25,000 gallon outside / above ground tank; and then pumps are used to top off the Class I tanks that are located in the building (Tanks T-48A and T-48B).

These are probably the ones that you are referring to. The inside tanks meet the statutory requirements for meeting the emergency fuel needs of the backup diesel generator sets.

The operator can also have fuel in tanks that is "above and beyond the call of duty". Since this is extra fuel above what the operator is required to have; the rules for the extra fuel tanks are less stringent than the primary fuel tanks.

Hope that answers your question.

PamW