Chapter NR 230

NR 230.003(7) (7) “Cobalt” means the total cobalt present in the process wastewater stream exiting the wastewater treatment system.

NR 230.003(8) (8) “Copper” means the total copper present in the process wastewater stream exiting the treatment system.

NR 230.003(9) (9) “Cyanide A” means cyanides amenable to chlorination as determined by the methods set forth in ch. NR 219, Table B, for parameter 24.

NR 230.003(10) (10) “Existing source” means any point source, except a new source as defined in sub. (13), from which pollutants may be discharged either into waters of the state or into a publicly owned treatment works.

NR 230.003(11) (11) “Lead” means the total lead present in the process wastewater stream exiting the wastewater treatment system.

NR 230.003(12) (12) “Mercury” means the total mercury present in the process wastewater stream exiting the mercury treatment system.

NR 230.003(13) (13) “New source” 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 table B:

NR 230.003(14) (14) “Nickel” means the total nickel present in the process wastewater stream exiting the wastewater treatment system.

NR 230.003(15) (15) “Selenium” means the total selenium present in the process wastewater stream exiting the wastewater treatment system.

NR 230.003(16) (16) “Zinc” means the total zinc present in the process wastewater stream exiting the wastewater treatment system.

NR 230.003 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.004 NR 230.004 Compliance dates.

NR 230.004(1) (1) Any existing source subject to this chapter which discharges to waters of the state shall achieve:

NR 230.004(1)(a) (a) The effluent limitations representing BPT by July 1, 1977; and

NR 230.004(1)(b) (b) The effluent limitations representing BAT by July 1, 1984.

NR 230.004(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 230.004(3) (3) Any existing source subject to the aluminum chloride, aluminum sulfate, potassium dichromate, ferric chloride, lead monoxide, silver nitrate, or sodium fluoride subcategory which discharges process wastewater pollutants to a POTW shall achieve PSES by July 20, 1980.

NR 230.004(4) (4) Any existing source subject to the copper salts, nickel salts, cadmium pigments and salts, cobalt salts, or zinc chloride subcategory which discharges process wastewater pollutants to a POTW shall achieve PSES by August 22, 1987, except for discharges from copper sulfate and nickel sulfate manufacturing operations.

NR 230.004(5) (5) Any existing source not subject to sub. (3) or (4) which discharges process wastewater pollutants to a POTW shall achieve PSES by June 29, 1985.

NR 230.004(6) (6) Any new source subject to this chapter which introduces process wastewater pollutants into a POTW shall achieve PSNS at the commencement of discharge.

NR 230.004 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

subch. I of ch. NR 230 Subchapter I — Aluminum chloride

NR 230.01 NR 230.01 Applicability; description of the aluminum chloride 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 chloride.

NR 230.01 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.015 NR 230.015 Pretreatment standards for existing sources. Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and the pH of the discharge shall be within the range of 5.0 to 10.0.

NR 230.015 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

subch. II of ch. NR 230 Subchapter II — Aluminum sulfate

NR 230.02 NR 230.02 Applicability; description of the aluminum sulfate 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 sulfate.

NR 230.02 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.022 NR 230.022 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

NR 230.022(1) (1) Except as provided in 40 CFR125.30 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 230.022(2) (2) Except as provided in subs. (3), (4), and (5), process wastewater pollutants may not be discharged to waters of the state.

NR 230.022(3) (3) If a process wastewater impoundment 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, the impoundment 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 230.022(4) (4) During any calendar month, a process wastewater impoundment may discharge a volume equivalent to whatever is the greater of the following:

NR 230.022(4)(a) (a) The difference between the precipitation for that month which falls within the impoundment and the evaporation for that month; or

NR 230.022(4)(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 230.022(5) (5) Any process wastewater discharged according to sub. (3) shall comply with the following effluent limitations representing BPT:

NR 230.022 Note (1)Within the range of 6.0 to 9.0

NR 230.022 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.023 NR 230.023 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

NR 230.023(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 230.023(2) (2) Except as provided in sub. (3), process wastewater pollutants may not be discharged to waters of the state.

NR 230.023(3) (3) If a process wastewater impoundment 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, the impoundment may discharge a volume of process wastewater equivalent to the volume of precipitation which falls within the impoundment in excess of that attributable to the 25-year, 24-hour rainfall event, when such an event occurs.

NR 230.023 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.024 NR 230.024 New source performance standards.

NR 230.024(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 230.024(2) (2) If a process wastewater impoundment 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, the impoundment may discharge a volume of process wastewater equivalent to the volume of precipitation which falls within the impoundment in excess of that attributable to the 25-year, 24-hour rainfall event, when such an event occurs.

NR 230.024 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.025 NR 230.025 Pretreatment standards for existing sources. Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following PSES:

NR 230.025 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.026 NR 230.026 Pretreatment standards for new sources. Except as provided in s. NR 211.13 and sub. (2), any new source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the standards set forth in s. NR 230.024.

NR 230.026 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

subch. III of ch. NR 230 Subchapter III — Calcium carbide

NR 230.03 NR 230.03 Applicability; description of the calcium carbide 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 calcium carbide in uncovered furnaces.

NR 230.03 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.032 NR 230.032 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 may not discharge process wastewater pollutants to waters of the state.

NR 230.032 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.033 NR 230.033 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 may not discharge process wastewater pollutants to waters of the state.

NR 230.033 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.034 NR 230.034 New source performance standards. Any new source subject to this subchapter may not discharge process wastewater pollutants to waters of the state.

NR 230.034 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.036 NR 230.036 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 may not discharge process wastewater pollutants into a POTW.

NR 230.036 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

subch. IV of ch. NR 230 Subchapter IV — Calcium chloride

NR 230.04 NR 230.04 Applicability; description of the calcium chloride 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 calcium chloride by the brine extraction process.

NR 230.04 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.042 NR 230.042 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:

NR 230.042 Note (1)Within the range of 6.0 to 9.0

NR 230.042 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.043 NR 230.043 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 may not discharge process wastewater pollutants to waters of the state.

NR 230.043 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.044 NR 230.044 New source performance standards. Any new source subject to this subchapter may not discharge process wastewater pollutants to waters of the state.

NR 230.044 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.046 NR 230.046 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 may not discharge process wastewater pollutants into a POTW.

NR 230.046 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

subch. V of ch. NR 230 Subchapter V — Calcium oxide

NR 230.05 NR 230.05 Applicability; description of the calcium oxide 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 calcium oxide.

NR 230.05 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.052 NR 230.052 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

NR 230.052(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 230.052(2) (2) Except as provided in subs. (3), (4), and (5), process wastewater pollutants may not be discharged to waters of the state.

NR 230.052(3) (3) If a process wastewater impoundment 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, the impoundment 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 230.052(4) (4) During any calender month, a process wastewater impoundment may discharge a volume equivalent to whatever is the greater of the following:

NR 230.052(4)(a) (a) The difference between the precipitation for that month which falls within the impoundment and the evaporation for that month; or

NR 230.052(4)(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 230.052(5) (5) Any process wastewater discharged according to sub. (4) shall comply with the following effluent limitations:

NR 230.052 Note (1)Within the range of 6.0 to 9.0

NR 230.052 History History: Cr. Register, September, 1990, No. 417, eff. 10-1-90.

NR 230.053 NR 230.053 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.