Subchapter LXVII — Zinc chloride
NR 230.67 Applicability; description of the zinc chloride subcategory.
NR 230.672 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
NR 230.673 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
NR 230.674 New source performance standards.
NR 230.675 Pretreatment standards for existing sources.
NR 230.676 Pretreatment standards for new sources.
NR 230.677 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.
NR 230.001
NR 230.001 Purpose. The purpose of this chapter is to establish effluent limitations, performance standards, and pretreatment standards for discharges of process wastes from the inorganic chemicals manufacturing point source category and its subcategories.
NR 230.001 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.002
NR 230.002 Applicability. This chapter applies to any manufacturing operation which discharges or may discharge process wastewater pollutants to waters of the state or into a publicly owned treatment works and which produces any of the inorganic chemicals listed in table A:
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See PDF for table 
NR 230.002 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.003
NR 230.003 General definitions. The following definitions are applicable to the terms used in this chapter. Definitions of other terms and abbreviations are set forth in
ss. NR 205.03,
205.04, and
211.03.
NR 230.003(1)
(1) “Antimony" means the total antimony present in the process wastewater stream exiting the wastewater treatment system.
NR 230.003(2)
(2) “Arsenic" means the total arsenic present in the process wastewater stream exiting the wastewater treatment system.
NR 230.003(3)
(3) “Bitterns" means the saturated brine solution remaining after precipitation of sodium chloride in the solar evaporation process.
NR 230.003(4)
(4) “Cadmium" means the total cadmium present in the process wastewater stream exiting the wastewater treatment system.
NR 230.003(5)
(5) “Chlorine" means the total residual chlorine present in the process wastewater stream exiting the wastewater treatment system.
NR 230.003(6)
(6) “Chromium" means the total chromium present in the process wastewater stream exiting the wastewater treatment system.
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:
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See PDF for table 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(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(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.
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.
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 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:
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See PDF for table 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.
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.
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:
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See PDF for table 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.
