NR 274.30 Applicability; description of the primary and secondary titanium subcategory. NR 274.302 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.303 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 274.304 New source performance standards. NR 274.305 Pretreatment standards for existing sources. NR 274.306 Pretreatment standards for new sources. Subchapter XXXI — Secondary Tungsten and Cobalt
NR 274.31 Applicability; description of the secondary tungsten and cobalt subcategory. NR 274.312 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.313 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 274.314 New source performance standards. NR 274.315 Pretreatment standards for existing sources. NR 274.316 Pretreatment standards for new sources. Subchapter XXXII — Secondary Uranium
NR 274.32 Applicability; description of the secondary uranium subcategory. NR 274.322 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.323 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 274.324 New source performance standards. NR 274.326 Pretreatment standards for new sources. Subchapter XXXIII — Primary Zirconium and Hafnium
NR 274.33 Applicability; description of the primary zirconium and hafnium subcategory. NR 274.332 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.333 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 274.334 New source performance standards. NR 274.336 Pretreatment standards for new sources. Ch. NR 274 NoteNote: Chapter NR 274 as it existed on March 31, 1991 was repealed and a new chapter NR 274 was created effective April 1, 1991.
NR 274.001NR 274.001 Purpose. The purpose of this chapter is to establish effluent limitations, performance standards, and pretreatment standards for discharges of process wastes from the nonferrous metals manufacturing point source category and its subcategories. NR 274.001 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.002NR 274.002 Applicability. This chapter applies to facilities which produce primary metals from ore concentrates and recover secondary metals from recycle wastes and which discharge or may discharge pollutants to waters of the state or which introduce or may introduce pollutants into a publicly owned treatment works. The applicability of this chapter to alloying or casting of nonferrous metals is limited to alloying or casting of hot metals directly from the nonferrous metals manufacturing process without cooling. Remelting followed by alloying or cooling is regulated by aluminum forming, 40 CFR Part 467, nonferrous metals forming, 40 CFR Part 471, or metal molding and casting, ch. NR 256. NR 274.002 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.003NR 274.003 General definitions. In addition to the definitions set forth in ss. NR 205.03, 205.04, and 211.03, the following definitions are applicable to the terms used in this chapter: NR 274.003(1)(1) “Existing source” means any point source, except a new source as defined in sub. (2), from which pollutants may be discharged either into waters of the state or into a publicly owned treatment works. NR 274.003(2)(2) “New source,” as defined for purposes of new source performance standards and pretreatment standards for new sources, means any point source from which pollutants are or may be discharged directly to waters of the state or into a publicly owned treatment works and for which construction commenced after the date given in the following table: NR 274.003(3)(3) “Primary” means the manufacture of a metal from ore concentrates or other virgin materials. NR 274.003(4)(4) “Secondary” means the manufacture of a metal from scrap or other recycled materials. NR 274.003 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.004(1)(1) Any existing source subject to this chapter which discharges to waters of the state shall achieve: NR 274.004(1)(a)(a) The effluent limitations representing BPT by July 1, 1977; and NR 274.004(2)(2) Any new source subject to this chapter which discharges to waters of the state shall achieve NSPS at the commencement of discharge. NR 274.004(3)(3) Any existing source subject to this chapter which introduces process wastewater pollutants into a POTW shall achieve PSES according to the date in the following tables: March 8, 1987
Bauxite refining
Primary aluminum smelting
Secondary aluminum smelting
Primary copper smelting
Primary electrolytic copper refining
Secondary copper
Primary lead
Primary zinc
Metallurgical acid plants
Primary tungsten
Primary columbium-tantalum
Secondary silver
Secondary lead
September 20, 1988
Primary antimony
Primary beryllium
Primary and secondary germanium and gallium
Secondary indium
Secondary mercury
Primary molybdenum and rhenium
Secondary molybdenum and vanadium
Primary nickel and cobalt
Secondary nickel
Primary precious metals and mercury
Secondary precious metals
Primary rare earth metals
Secondary tantalum
Secondary tin
Primary and secondary titanium
Secondary tungsten and cobalt
Secondary uranium
Primary zirconium and hafnium
NR 274.004(4)(4) Any new source subject to this chapter which introduces process wastewater pollutants into a POTW shall achieve PSNS at the commencement of discharge. NR 274.004 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.005NR 274.005 Removal allowances for pretreatment standards. Removal allowances according to 40 CFR 403.7(a) may be granted for the toxic metals limited in ch. NR 274 when the toxic metals are used as indicator pollutants. NR 274.005 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.006(1)(1) The monthly average regulatory values shall be the basis for the monthly average discharge in direct discharge permits and for pretreatment standards. NR 274.006(2)(2) Compliance with the monthly discharge limit is required regardless of the number of samples analyzed and averaged. NR 274.01NR 274.01 Applicability; description of the bauxite refining subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from the refining of bauxite to alumina by the Bayer process and by the combination process. NR 274.01 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.011NR 274.011 Specialized definitions. The following definitions apply to the terms used in this subchapter: NR 274.011(1)(1) “Bauxite” means ore which contains alumina monohydrate or alumina trihydrate and which serves as the principal raw material for the production of alumina by the Bayer process or by the combination process. NR 274.011(2)(2) “Within the impoundment”, for purposes of calculating the volume of process wastewater which may be discharged, means the surface area within the impoundment at the maximum capacity plus the area of the inside and outside slopes of the impoundment dam and the surface area between the outside edge of the impoundment dam and seepage ditches upon which rain falls and is returned to the impoundment, but the surface area allowance for external appurtenances to the impoundment shall not be more than 30% of the water surface area within the impoundment dam at maximum capacity.
