Woolsey Fire Started at Santa Susana Field Lab — Site of “[fourth] largest release of iodine-131 in the history of nuclear power”
In my Nov. 16 column, I reported on potential radiation risks posed by California’s Woolsey wildfire having burned over parts or all of the Santa Susana Field Laboratory—south of Simi Valley, Calif., 30 miles outside Los Angeles—site of at least four partial or total nuclear reactor meltdowns.
The field laboratory operated 10 experimental reactors and conducted rocket engine tests. In his 2014 book Atomic Accidents, researcher James Mahaffey writes, “The cores in four experimental reactors on site … melted.” Reactor core melts always result in the release of large amounts of radioactive gases and particles. Clean up of the deeply contaminated site has not been conducted in spite of a 2010 agreement.
Los Angeles’s KABC-7 TV reported Nov. 13 that the Santa Susana lab site “appears to be the origin of the Woolsey Fire” which has torched over 96,000 acres. Southern Calif. Public Radio said, “According to Cal Fire, the Woolsey Fire started on the afternoon of Thursday, Nov. 8 … on the Santa Susana site.” (https://abc7.com/sce-substation-outage-occurred-before-woolsey-fire-reported/4675611/)
In my column I noted that Dr. Arjun Makhijani, President of the Institute for Energy & Environmental Research, estimated that the partial meltdown of the lab’s Sodium Reactor Experiment (SRE) in 1957, caused “the third largest release of iodine-131 in the history of nuclear power,” according to Gar Smith in his 2012 book Nuclear Roulette. But Makhijani was speaking in 2006, so now of course the SRE meltdown counts as the fourth largest radio-iodine release—after the triple meltdowns at Fukushima in Japan in 2011, Chernobyl in Ukraine in 1986, and Windscale in England in 1957.
Santa Susana’s operators caused the destruction of the liquid sodium-cooled SRE on July 12, 1959—“showering the downwind hills and meadows of the 2,850-acre site with a fog of chromium and radioactive isotopes, including iodine-131,” according to Smith in Roulette. It was these hills and meadows that were burned so completely by the Woolsey wildfire.
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