NR 274.245 Pretreatment standards for existing sources.
NR 274.246 Pretreatment standards for new sources.
Subchapter XXV — Primary Precious Metals and Mercury
NR 274.25 Applicability; description of the primary precious metals and mercury subcategory.
NR 274.252 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 274.253 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 274.254 New source performance standards.
NR 274.256 Pretreatment standards for new sources.
Subchapter XXVI — Secondary Precious Metals
NR 274.26 Applicability; description of the secondary precious metals subcategory.
NR 274.261 Specialized definition.
NR 274.262 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 274.263 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 274.264 New source performance standards.
NR 274.265 Pretreatment standards for existing sources.
NR 274.266 Pretreatment standards for new sources.
Subchapter XXVII — Primary Rare Earth Metals
NR 274.27 Applicability; description of the primary rare earth metals subcategory.
NR 274.271 Specialized definitions.
NR 274.274 New source performance standards.
NR 274.275 Pretreatment standards for existing sources.
NR 274.276 Pretreatment standards for new sources.
Subchapter XXVIII — Secondary Tantalum
NR 274.28 Applicability; description of the secondary tantalum subcategory.
NR 274.282 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 274.283 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 274.284 New source performance standards.
NR 274.286 Pretreatment standards for new sources.
Subchapter XXIX — Secondary Tin
NR 274.29 Applicability; description of the secondary tin subcategory.
NR 274.292 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 274.293 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 274.294 New source performance standards.
NR 274.295 Pretreatment standards for existing sources.
NR 274.296 Pretreatment standards for new sources.
Subchapter XXX — Primary and Secondary Titanium
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 Note
Note: 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 274.001
NR 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 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.002
NR 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 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.003
NR 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:
-
See PDF for 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 History
History: 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:
-
See PDF for table 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 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.005
NR 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 History
History: 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 274.01
NR 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 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
