But if installed, the double-wall tank plan would seem to go ... In response to a 27,000- gallon fuel spill in 2014 from Tank 5, the EPA and Health Department negotiated an enforceable agreement ...

The application showed a request not for a single 2,500-gallon propane tank, but instead for three tanks that, when combined, equalled 2,500 gallons. Also, the application indicated that the ...

Last year, Energy Department officials disclosed that the tank now under scrutiny — AY-102 — had leaked material through its inner wall into a 2.5-foot-wide space between the double tank walls ...

In December, the Navy submitted a tank upgrade study that examines three single-wall options and includes improved repair and restoration as the most basic option, as well as two double-wall ...

In 2018 the Navy estimated that the least expensive method of double- walling the Red Hill fuel tanks would cost between $500 million and $2 billion. The most expensive tank-within-a-tank option ...