Very significant contamination occurred and has been quantified. The bad part is the fire raged in the least contaminated portion of the former laboratory property. The research is suggesting that a similar blaze occurring in the heavily contaminated areas would probably require the evacuation of LA.
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SSFL background on this monstrous toxic waste dump mismanaged by government for decades.
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To think Boeing thought they were going to do a superficial quick cleanup and turn the whole thing into a residential housing development...