Analysis of information sources in references of the Wikipedia article "Treasure Island, San Francisco" in English language version.
Until the early 1990s, the Navy operated atomic warfare training academies on Treasure Island, using instruction materials and devices that included radioactive plutonium, cesium, tritium, cadmium, strontium, krypton and cobalt. These supplies were stored at various locations around the former base, including supply depots, classrooms and vaults, and in and around a mocked-up atomic warfare training ship—the USS Pandemonium.
On 14 September 1949, Captain Howard A. Carlson,12456-A/ Detachment Commander, Detachment B, 3903 Radar Bomb Scoring Squadron, Treasure Island, San Francisco, California, was interviewed and stated that on 1 August 1949, two radar testing devices were released; one at approximately 1000 hours, PST, and another at 1400 hours, PST.
The Secretary of War approved the request that its execution be undertaken by the Army Corps of Engineers. While a group of such specialists applied their talents to the reclamation of the 'Yerba Buena Shoals', the day-by-day details were efficiently cared for by Colonel Fred Butler, U.S.A., who had years of army engineering experience behind him at this time. The fill to form Treasure Island was obtained by dredging operations; the island covered an area of 400 acres [160 ha], 5,520 feet [1,680 m] long by 3,410 feet [1,040 m] wide.