To me it sounds like the company failed to take proper safeguards against lead exposure.....
I worked in the automation industry supervising installations. If lead was found in existing paint, we had to call in the guys in the spacesuits, very expensive..
if 20 plus employees had elevated levels of lead in their blood, then the company is, in my mind, criminally neglegent and completely responsible for both the health damage and all medical expenses.
the officers of this company should be in prison
The question is how much?
I'm an ancient "survivor" of leaded gasoline and doing just fine thanks.
USA Brass will simply load their brass and jobs onto a mostly empty return boat and reopen as China Brass.