Stop in for a cup of coffee

Yep, what was the actual level? Was it documented or still exist that level can be verified? Was it an accidental release or part of a process? Were respirators available? OSHA says "The employer shall assure that no employee is exposed to lead at concentrations greater than fifty micrograms per cubic meter of air (50 ug/m3) averaged over an 8-hour period."(PEL) but makes exception for construction and agriculture. Does military have to follow OSHA?