Woolsey Fire Soil study results soil study results The independent, peer-reviewed, soil study proves that radioactive contamination left the Santa Susana Field Lab during the Woolsey Fire. soil study FAQ Soil Study FAQ We’ve put together accurate answers from trusted sources. dtsc/Boeing Coverup DTSC/Boeing coverup The DTSC deliberately mislead the public about the potential for radioactive and chemically contaminated ash and smoke during the Woolsey Fire. Boeing redid the Woolsey Fire Study and (unsurprisingly) found no radioactive ash. in the News in the news News coverage involving cleanup advocates during and after the fire.