fire for Neg. Dilute result

OK so I was fired after taking a drug screen that came back Negitive but diluted. Since I have a Class A they told me it was going to be DOT regulated. I am in the process of fighting the firing. But my question is this, will this go on my DAC? And if so can a company hold it against me even though the results were negitive?

The only reason I got fired is because I work for a city and we just got a new asst. city manager. Apparently it is his belief if your results come back diluted you are trying to hide something. But I did my research and found two other employees that have tested and recieved the same results as I have. They are still there. And according to DOT all employees are to be treated equally when questioning a result. So either they are gonna clean house and fire the others or rehire me.

 

Well Im not sure what FMCSA is but it was regulated by DOT. Results were reported to DOT.
We do not have a union. So thats out.
The diluted specimen means my Creatine levels were below 20mg/dL. My level was 15.1 so I was on the high side of what they consider to be diluted. They range it from 5-20mg/dL.
Thanks for the responses so far. As for the lawyer I am gonna try to file the grievance papers myself and see what happens. If it dont work out the way I want then I will go to the next level with a lawyer.

 

I was not tested again. Once the results were faxed to city hall they boss said that it came down from them they had to fire me. But as I said before there are at least 2 other employees that have got the same result one of them when they were first hired. They were allowed to take another test. As long as this does not go on my dAC or get reported to DOT I will be a little more happy and at ease. I just dont want this to possibly ruin a career path that I am looking to go on.