Florida Afuera, Puerto Rico
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EPA added the Barceloneta Landfill site in Florida Afuera, Puerto Rico to the Superfund National Priorities List on September 1, 1983 because hazardous chemicals were found in the soil and ground water. The 20 acre superfund site was an active landfill. About 300 tons of hazardous waste had been placed into three sinkholes which form the landfill; some as deep as 100 feet. No barrier existed to keep wastes from seeping into the ground water. As a result, on-site ground water contains various heavy metals and volatile organic compounds (VOCs), which are potentially harmful contaminants that can easily evaporate into the air. The surrounding area is commercial, residential, and agricultural. Approximately 12,000 people live in a three-mile radius of the site. People swim and fish in Quebrada Cimarrona, a stream located on the site.
EPA proposed and implemented a single long-term clean up plan to address the contamination at the site. The three disposal areas were capped by a cover system to prevent exposure to waste. The final clean-up action calls for the excavation and stockpiling of contaminated clays and the excavation and relocation of wastes. The site clean up was completed in 2000. Under EPA’s oversight, the party’s potentially responsible for the contamination initiated a 30-year long monitoring program in 2000, to ensure that the contamination and clean up is affective. Under current conditions at this site, potential or actual human exposures are under control.