DES MOINES, Iowa (AP) — Titan Tire Corp. and Dico Inc. must pay millions of dollars in fines and penalties for the demolition of three buildings in Des Moines that the Environmental Protection Agency says were contaminated with PCBs, chemicals linked to cancer and considered hazardous.

The EPA sued the companies in October 2010 claiming they cost taxpayers millions of dollars to establish a Superfund cleanup site in Ottumwa where steel beams from the demolished buildings were dumped. The agency says Dico also should be penalized for flouting environmental regulations.