The US Environmental Protection Agency (EPA) and the Oklahoma Department of Environmental Quality (DEQ) will soon embark on a $6.6 million cleanup of a former smelter site from World War I. Consolidation and capping of roughly 164,000 cubic yards of onsite soil and waste will be carried out. Additionally, 33,000 cubic yards of onsite sediment must be managed and site reuse assured. The zinc smelter was closed 93 years ago.