Wisconsin Legislature: NR 274.074

NR 274.063(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.

NR 274.063 History History: Cr. Register, March, 1991, No. 423, eff. 4-1-91.

NR 274.064 NR 274.064 New source performance standards. Any new source subject to this subchapter may not discharge process wastewater pollutants into waters of the state.

NR 274.064 History History: Cr. Register, March, 1991, No. 423, eff. 4-1-91.

NR 274.065 NR 274.065 Pretreatment standards for existing sources.

NR 274.065(1)(1) Except as provided in ss. NR 211.13 and 211.14 and sub. (2), any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and may not discharge process wastewater pollutants into a POTW.

NR 274.065(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.

NR 274.065 History History: Cr. Register, March, 1991, No. 423, eff. 4-1-91.

NR 274.066 NR 274.066 Pretreatment standards for new sources. Except as provided in s. NR 211.13, any new source subject to the secondary copper subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and may not discharge process wastewater pollutants into a POTW.

NR 274.066 History History: Cr. Register, March, 1991, No. 423, eff. 4-1-91.

subch. VII of ch. NR 274 Subchapter VII — Primary Lead

NR 274.07 NR 274.07 Applicability; description of the primary lead 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 lead at primary lead smelters and refineries.

NR 274.07 History History: Cr. Register, March, 1991, No. 423, eff. 4-1-91.

NR 274.072 NR 274.072 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: - See PDF for table