§ 413.02 General definitions.

In addition to the definitions set forth in 40 CFR part 401 and the chemical analysis methods set forth in 40 CFR part 136, both of which are incorporated herein by reference, the following definitions apply to this part:

(a) The term CN,A shall mean cyanide amenable to chlorination as defined by 40 CFR 136.

(b) The term CN,T shall mean cyanide, total.

(c) The term Cr,VI shall mean hexavalent chromium.

(d) The term electroplating process wastewater shall mean process wastewater generated in operations which are subject to regulation under any of subparts A through H of this part.

(e) The term total metal is defined as the sum of the concentration or mass of Copper (Cu), Nickel (Ni), Chromium (Cr) (total) and Zinc (Zn).

(f) The term strong chelating agents is defined as all compounds which, by virtue of their chemical structure and amount present, form soluble metal complexes which are not removed by subsequent metals control techniques such as pH adjustment followed by clarification or filtration.

(g) The term control authority is defined as the POTW if it has an approved pretreatment program; in the absence of such a program, the NPDES State if it has an approved pretreatment program or EPA if the State does not have an approved program.