When I got out of the Navy (honorable discharge, eight years and change) I went to work for a non-nuclear contractor doing shipyard electrician work in the summer of 2012, and I popped on the drug test (due to my roommate at the time's smoking, did not think that could happen, but yeah it does). This resulted in me getting canned after a week and a half and given a six month period where I could not work for the contractor. After the time period past, I went back to working for the contractor, and was working for them up until my successful interview and offer receipt for this nuclear job.
This hiccup with the contractor did not come up in the hiring process, and when I spoke to my old boss (again not nuclear) he said that he would not mention it as it was an internal matter, but while filling out the UA forms it made me concerned. I don't want to screw this up, and I don't want to open a can of worms (though based on other forum responses to other situations, the consensus seems to be pop those bad boys open).
I am specifically curious on how to proceed because it does not fall under the 10 questions asked because it was a pre-employment security screening issue (as framed by the contractor, again not nuclear) so it was not violating a FFD policy; use, sale or possession; subverting a testing program; refusal to take a test; subject to a treatment plan; or being subject to a law enforcement action. It was an employment action that changed my job responsibilities/removal from a job, but it was not abuse based (as is questioned) it was a screening issue.
What is the best way to proceed on this? Am I just screwed or being paranoid about a non-major issue? Would providing the following be a sufficient explanation of the situation?
"When I started to work for XXXX in May of 2012, I had a positive on the pre-employment drug screening (due to environmental exposure, I was completely surprised) and was suspend/terminated from contract work for six months. After six months, I restored my eligibility for contract work, passed another screening test, and went to work on a new contract when it became available."
My only other nuclear work experience was in the Navy, and they would deep six someone for ever for this sort of thing.