Authorities discovered a meth lab at 1303 Black Jack Road near Rockwood on Monday.
Roane County Sheriff’s Deputy John H. Mayes said the cleanup took more than six hours.
No one was charged, but Mayes said they did find some receipts for pseudoephedrine, which is a main precursor for meth.
A state database could help authorities find out who purchased the pseudoephedrine.
Mayes said that could be a valuable lead in determining who was responsible for the lab.