For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter shall apply to this subpart.
(b) The term ``production area size'' shall mean that area in which the oxidation towers, loading facilities, and all buildings that house product processes are located.
(c) The term ``process wastewater pollutants'' shall mean any pollutants present in the process wastewaters and rainwater runoff.