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NR 235.11(2) (2) The pH shall be within the range of 6.0 to 9.0 at all times.
NR 235.11 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.12 NR 235.12  Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 235.12(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 235.12(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 235.12(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 235.12 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.13 NR 235.13  New source performance standards (NSPS).
NR 235.13(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
NR 235.13(1)(a) (a) Shall achieve discharges in accordance with s. NR 235.81.
NR 235.13(1)(b) (b) May not exceed the BPT effluent limitations listed in the table in s. NR 235.11 (1); and
NR 235.13(1)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.13(2) (2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.13(2)(a) (a) Shall achieve discharges in accordance with s. NR 235.91.
NR 235.13(2)(b) (b) May not exceed BPT effluent limitations listed in the table in s. NR 235.11 (1); and
NR 235.13(2)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.13 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.14 NR 235.14  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 235.14 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.15 NR 235.15  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 235.15 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
subch. III of ch. NR 235 Subchapter III - Other Fibers
NR 235.20 NR 235.20  Applicability; description of the other fibers category. This subchapter applies to the process wastewater discharges resulting from the manufacture of products classified under SIC 2823 cellulosic man-made fibers, except rayon, and SIC 2824 synthetic organic fibers including the following fibers and fiber groups. Product groups are indicated with an asterisk.
  *Acrylic fibers (85% polyacrylonitrile)
  *Cellulose acetate fibers
  *Fluorocarbon (Teflon) fibers
  *Modacrylic fibers
  *Nylon 6 fibers
  Nylon 6 monofilament
  *Nylon 66 fibers
  Nylon 66 monofilament
  *Polyamide fibers (Quiana)
  *Polyaramid (Kevlar) resin-fibers
  *Polyaramid (Nomex) resin-fibers
  *Polyester fibers
  *Polyethylene fibers
  *Polypropylene fibers
  *Polyurethane fibers (Spandex)
NR 235.20 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.21 NR 235.21  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 235.21(1) (1) Limitations shall be calculated by multiplying the following concentrations by the manufacturing process wastewater flow: - See PDF for table PDF
NR 235.21(2) (2) The pH shall be within the range of 6.0 to 9.0 at all times.
NR 235.21 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.22 NR 235.22  Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 235.22(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 235.22(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 235.22(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 235.22 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.23 NR 235.23  New source performance standards (NSPS).
NR 235.23(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
NR 235.23(1)(a) (a) Shall achieve discharges in accordance with s. NR 235.81.
NR 235.23(1)(b) (b) May not exceed the BPT effluent limitations listed in the table in s. NR 235.21 (1); and
NR 235.23(1)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.23(2) (2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.23(2)(a) (a) Shall achieve discharges in accordance with s. NR 235.91.
NR 235.23(2)(b) (b) May not exceed BPT effluent limitations listed in the table in s. NR 235.21 (1); and
NR 235.23(2)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.23 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.24 NR 235.24  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 235.24 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.25 NR 235.25  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 235.25 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
subch. IV of ch. NR 235 Subchapter IV - Thermoplastic Resins
NR 235.30 NR 235.30  Applicability; description of the thermoplastic resins subcategory. This subchapter applies to the process wastewater discharges resulting from the manufacture of products classified under SIC 28213 thermoplastic resins including the following resins and resin groups. Product groups are indicated with an asterisk.
NR 235.30 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
Thermoplastic Resins - See PDF for table PDF
NR 235.31 NR 235.31 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 235.31(1) (1) Limitations shall be calculated by multiplying the following concentrations by the manufacturing process wastewater flow: - See PDF for table PDF
NR 235.31(2) (2) The pH shall be within the range of 6.0 to 9.0 at all times.
NR 235.31 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.32 NR 235.32  Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 235.32(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 235.32(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 235.32(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 235.32 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.33 NR 235.33  New source performance standards (NSPS).
NR 235.33(1)(1) Any new source that uses end-of-pipe biological treatment and is subject to this subchapter:
NR 235.33(1)(a) (a) Shall achieve discharges in accordance with s. NR 235.81.
NR 235.33(1)(b) (b) May not exceed the BPT effluent limitations listed in the table in s. NR 235.31 (1); and
NR 235.33(1)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.33(2) (2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.33(2)(a) (a) Shall achieve discharges in accordance with s. NR 235.91.
NR 235.33(2)(b) (b) May not exceed BPT effluent limitations listed in the table in s. NR 235.31 (1); and
NR 235.33(2)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.33 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.34 NR 235.34  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 235.34 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.35 NR 235.35  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 235.35 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.