53, site of the former Arrowhead Refinery. The U.S. Environmental Protection Agency listed the area as a Superfund site in the mid-1980s. It had extensive contamination from oil waste disposal.
“Completion of RI/FS activities can take many years and ... would not be the largest Superfund site, but it would be near the top of the list. The Hudson River Superfund site in New York has ...