Lauren,
Did you check for chemicals after exposing the burials or have a haz mat plan
before entering the field? I say this because most people digging in
cemeteries do not think out the consequences until after the fact. I excavated a 18th
and early 19th century cemetery and no one ever told us to do anything
special. That was in 1968 and I am still alive, so I assume there were no chemicals.
Ron