NR 235.51(1) (1) Limitations shall be calculated by multiplying the following concentrations by the manufacturing process wastewater flow: - See PDF for table PDF
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 235.52Effluent 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 235.53New 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(1)(a) (a) Shall achieve discharges in accordance with s. NR 235.81.
NR 235.53(1)(b) (b) May not exceed the BPT effluent limitations listed in the table in s. NR 235.51 (1); and
NR 235.53(1)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
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(2)(a) (a) Shall achieve discharges in accordance with s. NR 235.91.
NR 235.53(2)(b) (b) May not exceed BPT effluent limitations listed in the table in s. NR 235.51 (1); and
NR 235.53(2)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.53 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.54 NR 235.54Pretreatment 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 235.55Pretreatment 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.
subch. VII of ch. NR 235 Subchapter VII - Bulk Organic Chemicals
NR 235.60 NR 235.60Applicability; description of the bulk organic chemicals subcategory. This subchapter applies to the process wastewater discharges resulting from the manufacture of the following SIC 2865 and 2869 bulk organic chemicals and bulk organic chemical groups. Product groups are indicated with an asterisk. - See PDF for table PDF - See PDF for table PDF - See PDF for table PDF - See PDF for table PDF - See PDF for table PDF
NR 235.60 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.61 NR 235.61Effluent 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 PDF
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 235.62Effluent 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 235.63New 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(1)(a) (a) Shall achieve discharges in accordance with s. NR 235.81.
NR 235.63(1)(b) (b) May not exceed the BPT effluent limitations listed in the table in s. NR 235.61 (1); and
NR 235.63(1)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
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(2)(a) (a) Shall achieve discharges in accordance with s. NR 235.91.
NR 235.63(2)(b) (b) May not exceed BPT effluent limitations listed in the table in s. NR 235.61 (1); and
NR 235.63(2)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.63 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.64 NR 235.64Pretreatment 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 235.65Pretreatment 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.
subch. VIII of ch. NR 235 Subchapter VIII - Specialty Organic Chemicals
NR 235.70 NR 235.70Applicability; 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 235.71Effluent 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 PDF
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 235.72Effluent 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 235.73New 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:
NR 235.73(1)(a) (a) Shall achieve discharges in accordance with s. NR 235.81.
NR 235.73(1)(b) (b) May not exceed the BPT effluent limitations listed in the table in s. NR 235.71 (1); and
NR 235.73(1)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.73(2) (2) Any new source that does not use end-of-pipe biological treatment and is subject to this section:
NR 235.73(2)(a) (a) Shall achieve discharges in accordance with s. NR 235.91.
NR 235.73(2)(b) (b) May not exceed BPT effluent limitations listed in the table in s. NR 235.71 (1); and
NR 235.73(2)(c) (c) Shall maintain the pH within 6.0 to 9.0 at all times.
NR 235.73 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.74 NR 235.74Pretreatment 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 235.74 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.75 NR 235.75Pretreatment 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 235.75 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
subch. IX of ch. NR 235 Subchapter IX - Direct Discharge Point Sources That Use End-Of-Pipe Biological Treatment
NR 235.80 NR 235.80Applicability; description of the subcategory of direct discharge point sources that use end-of-pipe biological treatment. This subchapter applies to the process wastewater discharges resulting from the manufacture of the OCPSF products and products groups defined by s. NR 235.02 from any point source that uses end-of-pipe biological treatment or installs end-of-pipe biological treatment to comply with BPT effluent limitations.
NR 235.80 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
NR 235.81 NR 235.81Toxic pollutant effluent limitations and standards for direct discharge point sources that use end-of-pipe biological treatment.
NR 235.81(1) (1) Any point source subject to this subchapter must achieve discharges not exceeding the quantity determined by multiplying the process wastewater flow times the concentrations in the following table.
NR 235.81(2) (2) For chromium, copper, lead, nickel, zinc and total cyanide:
NR 235.81(2)(a) (a) The discharge quantity shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from the metal-bearing waste streams for the metals and times the flow from the cyanide bearing waste streams for total cyanide.
NR 235.81(2)(b) (b) The metal-bearing waste streams and cyanide-bearing waste streams are defined as:
NR 235.81(2)(b)1. 1. Those waste streams listed in Appendix A.
NR 235.81(2)(b)2. 2. Any additional OCPSF process wastewater streams identified by the permitting authority on a case-by-case basis as metal or cyanide bearing based upon a determination that such streams contain significant amounts of the pollutants identified above.
NR 235.81(2)(c) (c) Any streams designated under par. (b) 2. shall be treated independently of other metal or cyanide bearing waste streams unless the permitting authority determines that the combination of such streams, prior to treatment, with the Appendix A waste streams will result in substantial reduction of these pollutants. This determination shall be based upon a review of relevant engineering, production and sampling information. - See PDF for table PDF
1All units are micrograms per liter.
2Total zinc for rayon fiber manufacture that uses the viscose process and acrylic fiber manufacture that uses the zinc chloride/solvent process is 6,796 µg/l maximum for any one day and 3,325 µg/l maximum for monthly average.
NR 235.81 History History: Cr. Register, March, 1997, No. 495, eff. 4-1-97.
subch. X of ch. NR 235 Subchapter X - Direct Discharge Point Sources That Do Not Use End-of-Pipe Biological Treatment
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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.