As many as 714 "spotting" rounds, measuring about 8 inches long and containing depleted uranium, were fired by soldiers in the islands in the 1960s using the classified Davy Crockett recoilless rifle system, the Army disclosed yesterday.

However, because of all the secrecy surrounding a once-classified weapons system, the Army is not exactly sure what firing ranges were used.

So far, preliminary surveys done by Cabrera Services have found traces of the projectiles at Schofield Barracks and the Big Island's Pohakuloa Training Area, but it is having hard time determining if the Makua Military Reservation was used.
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Big Island peace activist Jim Albertini has disagreed with the Army assessment that depleted uranium is not a health threat. He has called on the Army to stop all live-firing at Pohakuloa until tests show how much depleted uranium is in the soil.