Seyfarth Synopsis: Continuing its assault on commonly used chemicals that pose risks to human health, the United States Environmental Protection Agency (“USEPA”) issued (but has not yet published in the Federal Register) bans on Trichloroethylene (“TCE” or “Tri”) and Perchloroethylene (“PCE” or “Perc”) under the Toxic Substances Control Act (“TSCA”).  The bans were first proposed…