"Metal casting is not a mineral processing industry," the U.S. Rep. Chuck Fleischmann's letter states.
Still, the EPA in recent months has enforced the air quality regulations at foundries in the Midwest. Industry experts said it's because foundries purchase a type of industrial sand that the EPA regulates at the supplier level.
U.S. Rep. Chuck Fleischmann challenges EPA's foundry rules | Times Free Press
WASHINGTON - Joined by dozens of fellow lawmakers, U.S. Rep. Chuck Fleischmann, R-Tenn., sent a letter Monday to the Environmental Protection Agency challenging a regulation that could hurt Lodge Manufacturing Co. in South Pittsburg and other American foundries.