NR 235.41(2)
(2) The pH shall be within the range of 6.0 to 9.0 at all times.
NR 235.41 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.42
NR 235.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). NR 235.42(1)(1) For existing point sources whose total OCPSF production defined by
s. NR 235.02 is less than or equal to 5 million pounds of OCPSF products per year, the BAT level of treatment shall be the same as the BPT level of treatment.
NR 235.42(2)
(2) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that uses end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.81.
NR 235.42(3)
(3) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that does not use end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.91.
NR 235.42 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.43
NR 235.43 New source performance standards (NSPS). NR 235.43(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
NR 235.43(2)
(2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.43 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.44
NR 235.44 Pretreatment standards for existing sources (PSES). 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 discharges in accordance with
s. NR 235.99.
NR 235.44 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.45
NR 235.45 Pretreatment standards for new sources (PSNS). 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 discharges in accordance with
s. NR 235.99.
NR 235.45 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.50
NR 235.50 Applicability; description of the commodity organic chemicals subcategory. This subchapter applies to the process wastewater discharges resulting from the manufacture of the following SIC 2865 and 2869 commodity organic chemicals and commodity organic chemical groups. Product groups are indicated with an asterisk.
-
See PDF for table 
NR 235.50 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.51
NR 235.51 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). Except as provided in
40 CFR 125.30 to
125.32, and in
s. NR 235.02 (9) for point sources with production in 2 or more subcategories, any existing point source subject to this section shall achieve the following limitations:
NR 235.51(1)
(1) Limitations shall be calculated by multiplying the following concentrations by the manufacturing process wastewater flow:
-
See PDF for table NR 235.51(2)
(2) The pH shall be within the range of 6.0 to 9.0 at all times.
NR 235.51 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.52
NR 235.52 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). NR 235.52(1)(1) For existing point sources whose total OCPSF production defined by
s. NR 235.02 is less than or equal to 5 million pounds of OCPSF products per year, the BAT level of treatment shall be the same as the BPT level of treatment.
NR 235.52(2)
(2) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that uses end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.81.
NR 235.52(3)
(3) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that does not use end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.91.
NR 235.52 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.53
NR 235.53 New source performance standards (NSPS). NR 235.53(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
NR 235.53(2)
(2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.53 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.54
NR 235.54 Pretreatment standards for existing sources (PSES). 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 discharges in accordance with
s. NR 235.99.
NR 235.54 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.55
NR 235.55 Pretreatment standards for new sources (PSNS). 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 discharges in accordance with
s. NR 235.99.
NR 235.55 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.60 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.61
NR 235.61 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). Except as provided in
40 CFR 125.30 to
125.32, and in
s. NR 235.02 (9) for point sources with production in 2 or more subcategories, any existing point source subject to this section shall achieve the following limitations:
NR 235.61(1)
(1) Limitations shall be calculated by multiplying the following concentrations by the manufacturing process wastewater flow:
-
See PDF for table NR 235.61(2)
(2) The pH level shall be within the range of 6.0 to 9.0 at all times.
NR 235.61 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.62
NR 235.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). NR 235.62(1)(1) For existing point sources whose total OCPSF production defined by
s. NR 235.02 is less than or equal to 5 million pounds of OCPSF products per year, the BAT level of treatment shall be the same as the BPT level of treatment.
NR 235.62(2)
(2) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that uses end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.81.
NR 235.62(3)
(3) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that does not use end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.91.
NR 235.62 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.63
NR 235.63 New source performance standards (NSPS). NR 235.63(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
NR 235.63(2)
(2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.63 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.64
NR 235.64 Pretreatment standards for existing sources (PSES). 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 discharges in accordance with
s. NR 235.99.
NR 235.64 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.65
NR 235.65 Pretreatment standards for new sources (PSNS). 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 discharges in accordance with
s. NR 235.99.
NR 235.65 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.70
NR 235.70 Applicability; description of the specialty organic chemicals subcategory. This subchapter applies to the process wastewater discharges resulting from the manufacture of all SIC 2865 and 2869 organic chemicals and organic chemical groups which are not defined as commodity chemicals in
s. NR 235.50 or bulk organic chemicals in
s. NR 235.60.
NR 235.70 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.71
NR 235.71 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). Except as provided in
40 CFR 125.30 to
125.32, and in
s. NR 235.02 (9) for point sources with production in 2 or more subcategories, any existing point source subject to this section shall achieve the following limitations:
NR 235.71(1)
(1) Limitations shall be calculated by multiplying the following concentrations by the manufacturing process wastewater flow:
-
See PDF for table NR 235.71(2)
(2) The pH shall be within the range of 6.0 to 9.0 at all times.
NR 235.71 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.72
NR 235.72 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). NR 235.72(1)(1) For existing point sources whose total OCPSF production defined by
s. NR 235.02 is less than or equal to 5 million pounds of OCPSF products per year, the BAT level of treatment shall be the same as the BPT level of treatment.
NR 235.72(2)
(2) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that uses end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.81.
NR 235.72(3)
(3) Except as provided in
sub. (1) and in
40 CFR 125.30 to
125.32, any existing point source that does not use end-of-pipe biological treatment and is subject to this subchapter shall achieve discharges in accordance with
s. NR 235.91.
NR 235.72 History
History: Cr. Register, March, 1997, No. 495, eff. 4-1-97. NR 235.73
NR 235.73 New source performance standards (NSPS). NR 235.73(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
