VA – Toxic C-123s as Agent Orange STORAGE Sites???

Agent Orange spray 1500 gallon
tanks inside UC-123K during Operation
Ranch Hand, Vietnam War

The VA web site  mentions storage sites all over the world as exposure sites for Agent Orange,

Wouldn't by definition the C-123 airplanes be storage sites? Those which were used for Operation Ranch Hand obviously "stored" 1500 gallons of Agent Orange for each mission!

storage [ˈstɔːrɪdʒ]

n

1. the act of storing or the state of being stored

2. space or area reserved for storing

3. (Business / Commerce) a charge made for storing

4. (Electronics & Computer Science / Computer Science) Computing

a.  the act or process of storing information in a computer memory or on a magnetic tape, disk, etc.

b.  (as modifier) a storage device storage capacity

Collins English Dictionary – Complete and Unabridged © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003