For three decades, the Stauffer Chemical facility in Tarpon Springs, Florida manufactured and processed an array of hazardous and radioactive materials. The site was closed in 1981 but slag piles have remained. The US Environmental Protection Agency (EPA) has announced that it anticipates beginning cleanup of the 130-acre site in early to mid 2009. Two geosynthetic-capped mounds will be constructed, one on 18.5 acres and the other on 29 acres.