Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 256 - Metal molding and casting
Section NR 256.03 - General definitions

(1) "Aluminum casting" means the remelting of aluminum or an aluminum alloy to form an intermediate or final cast product by pouring or forcing the molten metal into a mold.

(2) "Copper casting" means the remelting of copper or a copper alloy, to form an intermediate or final cast product by pouring or forcing the molten metal into a mold.

(3) "Existing source" means any point source, except a new source as defined in sub. (5), from which pollutants may be discharged either into waters of the state or into a POTW.

(4) "Ferrous casting" means the remelting of ferrous metals to form an intermediate or final cast product by pouring or forcing the molten metal into a mold.

(5) "New source", as defined for new source performance standards and pretreatment standards for new sources, means any point source from which pollutants are or may be discharged directly into the waters of the state or into a POTW, the construction of which commenced after November 15, 1982.

(6) "Noncontinuous discharger" means a plant which does not discharge pollutants during periods of at least 24 hours in duration for reasons other than an upset, such as plants which routinely store wastewater for treatment on a batch basis.

(7) "Total phenols" means total phenolic compounds as measured by the test procedure for phenols, which is distillation followed by manual or automated colorimetric (4AAP), as indicated in ch. NR 219, Table B, for parameter 48.

(8) "Zinc casting" means the remelting of zinc or a zinc alloy to form an intermediate or final cast product by pouring or forcing the molten metal into a mold.

(9) Abbreviations to be used: