NR 230.132(4)
(4) During any calendar month, a process wastewater impoundment may discharge a volume equivalent to the greater of the following:
NR 230.132(4)(a)
(a) The difference between the precipitation for that month which falls within the impoundment and the evaporation for that month;
NR 230.132(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 by the national climatic center, national oceanic and atmospheric administration for the impoundment's location or as otherwise established if no monthly evaporation has been determined by the national climatic center.
NR 230.132 Note
(1)Within the range of 6.0 to 9.0
NR 230.132 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.133
NR 230.133 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.133(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 230.133(2)
(2) Except as provided in
sub. (3), process wastewater pollutants may not be discharged to waters of the state.
NR 230.133(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 230.133 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.134
NR 230.134 New source performance standards. NR 230.134(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 230.134(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 230.134 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.136
NR 230.136 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 standards set forth in
s. NR 230.134.
NR 230.136 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.14
NR 230.14 Applicability; description of the sodium bicarbonate 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 sodium bicarbonate.
NR 230.14 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.142
NR 230.142 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 230.142 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.143
NR 230.143 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 230.143 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.144
NR 230.144 New source performance standards. Any new source subject to this subchapter may not discharge process wastewater pollutants to waters of the state.
NR 230.144 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.146
NR 230.146 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 230.146 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.16
NR 230.16 Applicability; description of the sodium 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 sodium chloride by the solution brine mining process and by the solar evaporation process.
NR 230.16 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.162
NR 230.162 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. NR 230.162(1)(a)(a) Except as provided in
40 CFR 125.30 to
125.32 and
par. (b), any existing point source subject to this subchapter which uses the solar evaporation procedure may not discharge process wastewater pollutants to waters of the state.
NR 230.162(1)(b)
(b) If no additional pollutants are added to the bitterns during production of sodium chloride, unused bitterns may be returned to the body of water from which the process brine solution was originally withdrawn.
NR 230.162(2)
(2) Solution brine mining. Except as provided in
40 CFR 125.30 to
125.32, any existing point source subject to this subchapter which uses the solution brine mining process shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of BPT:
-
See PDF for table 
NR 230.162 Note
(1)Within the range of 6.0 to 9.0
NR 230.162 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.163
NR 230.163 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. NR 230.163(1)(a)(a) Except as provided in
40 CFR 125.30 to
125.32 and
par. (b), any existing point source subject to this subchapter which uses the solar evaporation procedure may not discharge process wastewater pollutants to waters of the state.
NR 230.163(1)(b)
(b) If no additional pollutants are added to the bitterns during production of sodium chloride, unused bitterns may be returned to the body of water from which the process brine solution was originally withdrawn.
NR 230.163 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.164
NR 230.164 New source performance standards. NR 230.164(1)(a)(a) Except as provided in
par. (b), any new source subject to this subchapter which uses the solar evaporation process may not discharge process wastewater pollutants to waters of the state.
NR 230.164(1)(b)
(b) If no additional pollutants are added to the bitterns during production of sodium chloride, unused bitterns may be returned to the body of water from which the process brine solution was originally withdrawn.
NR 230.164(2)
(2) Solution brine mining. Any new source subject to this subchapter which uses the solution brine mining process may not discharge process wastewater pollutants to waters of the state.
NR 230.164 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.166
NR 230.166 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 shall achieve the standards set forth in
s. NR 230.164.
NR 230.166 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.17
NR 230.17 Applicability; description of the sodium dichromate and sodium 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 sodium dichromate and byproduct sodium sulfate.
NR 230.17 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.172
NR 230.172 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 the application of BPT:
-
See PDF for table NR 230.172 Note
(1)Within the range of 6.0 to 9.0
NR 230.172 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.173
NR 230.173 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 limitations set forth in
s. NR 230.172 for total chromium, hexavalent chromium, and nickel.
NR 230.173 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.174
NR 230.174 New source performance standards. Any new source subject to this subchapter shall achieve the standards set forth in
s. NR 230.172.
NR 230.174 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.176
NR 230.176 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 shall achieve the following PSNS:
-
See PDF for table NR 230.176 Note
(1)When a POTW finds that mass limitations are necessary, the PSNS shall be the standards set forth in s.
NR 230.172 for total chromium, hexavalent chromium, and nickel.
NR 230.176 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.177
NR 230.177 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. Except as provided in
40 CFR 125.30 to
125.32, any existing point source subject to this subchapter shall achieve the limitations set forth in
s. NR 230.172 for TSS and pH.
NR 230.177 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.20
NR 230.20 Applicability; description of the sodium sulfite 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 sodium sulfite by reacting sulfur dioxide with sodium carbonate.
NR 230.20 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.202
NR 230.202 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 the application of BPT:
-
See PDF for table NR 230.202 Note
(1) Within the range of 6.0 to 9.0
NR 230.202 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.203
NR 230.203 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 the application of BAT:
-
See PDF for table NR 230.203 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.204
NR 230.204 New source performance standards. Any new source subject to this subchapter shall achieve the following NSPS:
-
See PDF for table NR 230.204 Note
(1) Within the range of 6.0 to 9.0
NR 230.204 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.206
NR 230.206 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 shall achieve the following PSNS:
-
See PDF for table NR 230.206 Note
(1) When a POTW finds that mass limitations are necessary, the PSNS shall be the standards set forth in s.
NR 230.204 for total chromium, total zinc, and COD.
NR 230.206 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.22
NR 230.22 Applicability; description of the titanium dioxide 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 titanium dioxide by the sulfate process, the chloride process, and the chloride-ilmenite process.
NR 230.22 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.222
NR 230.222 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 the application of BPT:
-
See PDF for table NR 230.222 Note
(1) Within the range of 6.0 to 9.0
NR 230.222 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 230.223
NR 230.223 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 limitations set forth in
s. NR 230.222 for chromium and nickel.
