Identification of sources.

The plan applies to existing facilities at the following sulfuric acid plants: (a) Acid plants operated by (1) Reichhold Chemical Company in Tuscaloosa, (2) Stauffer Chemical Company in Mobile, and (3) Estech Chemical in Dothan. (b) There are no oleum plants. (c) There are not sulfur-burning plants. (d) There are no bound sulfur feedstock plants.