The Navy did not DROP a "500-pound TNT bomb" on Kahoolawe, creating the China Hat crater. The stacked up 500 TONS of TNT in order to simulate the force of an atomic bomb. 

See here: https://en.wikipedia.org/wiki/Operation_Sailor_Hat

One of the "unintended consequences" of this reckless act was to blast a hole in the caprice which helped hold in the freshwater lens under the island, leading to a permanent loss of the water table.

But, hey, this is the same Navy which painted white the rocks of heiau atop the island and used them as targets for artillery fire. Reckless? Rude? Arrogant? No, not "our" military. 

And maybe they can restore Waikane Valley as well? To say nothing of Pohakuloa on the Big Island. Or Makua on the Leeward side of Oahu.

At the 1978 hearings on the Navy's EIS for the bombing of Kahoolawe, I ended my testimony with this suggestion to the military. I think it still holds true today:

"Get your opala,
and get your ukana,
and get your okoles 
off of the aina."