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. NR 274.011(3)(3) “Pond water surface area”, for the purpose of calculating the volume of wastewater, means the area within the impoundment for rainfall and the actual water surface area for evaporation. NR 274.011 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.012NR 274.012 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.012(1)(1) Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BPT. NR 274.012(2)(2) Except as provided in sub. (3), process wastewater pollutants may not be discharged to waters of the state. NR 274.012(3)(3) During any calender month, a process wastewater impoundment may discharge from the overflow a volume equivalent to whatever is the greatest of the following: NR 274.012(3)(a)(a) The difference between the precipitation for that month which falls within the impoundment and the evaporation from the impoundment for that month; or NR 274.012(3)(b)(b) The difference between the mean precipitation for that month which falls within the impoundment and the mean evaporation for that month as established for the impoundment’s location by the national climatic center, national oceanic and atmospheric administration, or as otherwise established if no monthly evaporation has been determined by the national climatic center. NR 274.012 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.013NR 274.013 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 274.013(1)(1) Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BAT. NR 274.013(2)(2) Except as provided in sub. (3), process wastewater pollutants may not be discharged to waters of the state. NR 274.013(3)(3) During any calender month, a process wastewater impoundment may discharge from the overflow a volume equivalent to whatever is the greatest of the following: NR 274.013(3)(a)(a) The difference between the precipitation for that month which falls within the impoundment and the evaporation from the impoundment for that month; or NR 274.013(3)(b)(b) The difference between the mean precipitation for that month which falls within the impoundment and the mean evaporation for that month as established for the impoundment’s location by the national climatic center, national oceanic and atmospheric administration, or as otherwise established if no monthly evaporation has been determined by the national climatic center. NR 274.013 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.014NR 274.014 New source performance standards. NR 274.014(1)(1) Except as provided in sub. (2), any new source subject to this subchapter may not discharge process wastewater pollutants to waters of the state. NR 274.014(2)(2) During any calender month, a process wastewater impoundment may discharge from the overflow a volume equivalent to whatever is the greatest of the following: NR 274.014(2)(a)(a) The difference between the precipitation for that month which falls within the impoundment and the evaporation from the impoundment for that month; or NR 274.014(2)(b)(b) The difference between the mean precipitation for that month which falls within the impoundment and the mean evaporation for that month as established for the impoundment’s location by the national climatic center, national oceanic and atmospheric administration, or as otherwise established if no monthly evaporation has been determined by the national climatic center. NR 274.014 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.016NR 274.016 Pretreatment standards for new sources. Any new source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211. NR 274.02NR 274.02 Applicability; description of the primary aluminum smelting subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from the production of aluminum from alumina in the Hall-Heroult process. NR 274.02 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.021NR 274.021 Measurements not detecting benzo(a)pyrene. If a permittee chooses to analyze for benzo(a)pyrene using any EPA approved method, any nondetected measurements shall be considered zeros for purposes of determining compliance with this subchapter. NR 274.021 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.022NR 274.022 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BPT: (1) Within the range of 6.0 to 9.0.
NR 274.022 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.023NR 274.023 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BAT: (1) This pollutant has no discharge allowance.
(1) This pollutant has no discharge allowance.
