40 CFR § 415.671
Specialized definitions
June 9, 2020
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 product shall mean zinc chloride.
(c) The term arsenic shall mean the total arsenic present in the process wastewater stream exiting the wastewater treatment system.
(d) The term zinc shall mean the total zinc present in the process wastewater stream exiting the wastewater treatment system.
(e) The term lead shall mean the total lead present in the process wastewater stream exiting the wastewater treatment system.