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.
(1) This pollutant has no discharge allowance.
NR 274.023 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.024NR 274.024 New source performance standards. Any new source subject to this subchapter shall achieve the following standards: (1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) This pollutant has no discharge allowance.
(2) Within the range of 7.0 to 10.0 at all times, but if this waste is discharged separately and without commingling with any other wastewater, the pH shall be within the range of 6.0 to 10.0 at all times.
(1) This pollutant has no discharge allowance
(2) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
NR 274.024 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.026NR 274.026 Pretreatment standards for new sources. Except as provided in s. NR 211.13, any new source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following PSNS: (1) This pollutant has no discharge allowance.
(1) This pollutant has no discharge allowance.
NR 274.026 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.03NR 274.03 Applicability; description of the secondary 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 recovery, processing, and remelting of aluminum scrap to produce metallic aluminum alloys. NR 274.03 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.032NR 274.032 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.032(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 274.032(2)(2) Facilities which use water for metal cooling may not discharge process wastewater pollutants to waters of the state. NR 274.032(3)(3) Facilities which use aluminum fluoride in their magnesium removal process may not discharge process wastewater pollutants to waters of the state. NR 274.032(4)(4) Facilities which use chlorine in their magnesium removal process shall achieve the following limitations: (1) Within the range of 7.5 to 9.0.
NR 274.032(5)(5) Facilities which process residues by wet methods shall achieve the following limitations: (1) Within the range of 7.5 to 9.0.
NR 274.032 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.033NR 274.033 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) At or before the commingling of delacquering scrubber liquor blowdown with other process or nonprocess waters.
NR 274.033 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.034NR 274.034 New source performance standards. Any new source subject to this subchapter shall achieve the following standards: (1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) At or before the commingling of delacquering scrubber liquor blowdown with other process or nonprocess waters.
(2) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
(1) Within the range of 7.0 to 10.0 at all times.
NR 274.034 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.035NR 274.035 Pretreatment standards for existing sources. Except as provided in ss. NR 211.13 and 211.14, any new [existing] source subject to the secondary aluminum smelting subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following PSES: (1) At or before the commingling of delacquering scrubber liquor blowdown with other process or nonprocess waters.
NR 274.035 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.036NR 274.036 Pretreatment standards for new sources. Except as provided in s. NR 211.13, any new source subject to the secondary aluminum smelting subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following PSNS: (1) At or before the commingling of delacquering scrubber liquor blowdown with other process or nonprocess waters.
NR 274.036 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.04NR 274.04 Applicability; description of the primary copper smelting subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from the primary smelting of copper from ore or ore concentrates by processes such as roasting, converting, leaching if preceded by a pyrometallurgical step, slag granulation and dumping, and fire refining and from the casting of products from these operations. NR 274.04 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.041NR 274.041 Specialized definitions. The following definitions apply to the terms used in this subchapter: NR 274.041(1)(1) “Within the impoundment,” for purposes of calculating the volume of process wastewater which may be discharged, has the following meanings: NR 274.041(1)(a)(a) If the impoundment was constructed prior to February 27, 1975, “within the impoundment” means the surface area within the impoundment at the maximum capacity plus the surface area of the inside and outside slopes of the impoundment dam and the surface area between the outside edge of the impoundment dam and any seepage ditch adjacent to the dam upon which rain falls and is returned to the impoundment, but the surface area allowance for external appurtenances to the impoundment may not be more than 30% of the water surface area within the impoundment dam at maximum capacity. NR 274.041(1)(b)(b) If the impoundment was constructed on or after February 27, 1975, “within the impoundment” means the water surface area within the impoundment at maximum capacity. NR 274.041 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.0415NR 274.0415 Combining waste streams. If the waste streams subject to this subchapter are combined for treatment or discharge with waste streams subject to the primary electrolytic copper refining subchapter or the metallurgical acid plant subchapter, the quantity of each pollutant or pollutant property discharged may not exceed the quantity of each pollutant or pollutant property which could be discharged if each waste stream was discharged separately. NR 274.0415 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.042NR 274.042 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 274.042(1)(1) Except as provided in 40 CFR 125.30 to 125.32 and sub. (2), any existing point source subject to this primary copper smelting subchapter may not discharge process wastewater pollutants to waters of the state. NR 274.042(2)(2) A process wastewater impoundment which is designed, constructed, and operated to contain the precipitation from the 10-year, 24-hour rainfall event as established for the impoundment’s location by the national climatic center, national oceanic and atmospheric administration, may discharge a volume of process wastewater equivalent to the volume of precipitation which falls within the impoundment in excess of the precipitation attributable to the 10-year, 24-hour rainfall event, when such an event occurs. NR 274.042 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91. NR 274.043NR 274.043 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 274.043(1)(1) Except as provided in 40 CFR 125.30 to 125.32 and sub. (2), any existing point source subject to this subchapter may not discharge process wastewater pollutants into waters of the state. NR 274.043(2)(2) A process wastewater impoundment which is designed, constructed, and operated to contain the precipitation from the 25-year, 24-hour rainfall event as established for the impoundment’s location by the national climatic center, national oceanic and atmospheric administration, may discharge a volume of process wastewater equivalent to the volume of precipitation which falls within the impoundment in excess of the precipitation attributable to the 25-year, 24-hour rainfall event, when such an event occurs.
