The plan applies to existing facilities at the following sulfuric acid plants:
(a) Sulfur-burning plants operated by:(1) Texasgulf Inc. in Beaufort County,(2) Swift Agricultural Chemical Company in Brunswick County,(3) USS Agri-Chemicals in Brunswick County,(4) Wright Chemical Corporation in Columbus County, and(5) Northeast Chemical Company in New Hanover County.(b) There are no oleum plants.(c) There are no bound sulfur feedstock plants.