On his personal Facebook page, Cal/OSHA's Clyde Trombettas accused them of bias, media grandstanding and scaring the public with half-truths and misleading information.
Most of the comments have been removed.
Cal/OSHA and the Chemical Safety Board announced they have agreed to preserve the accident site while their investigations continue into the August 6 fire.
Trombetta's Facebook page suggested an undercurrent of friction with the investigation as the two agencies dispute which one will serve as the lead agency in the probe.
