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NR 252.74 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.75NR 252.75 Pretreatment standards for existing sources (PSES). Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subcategory that introduces process wastewater pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the following pretreatment standards:
NR 252.75 Note1Within the range 6.0 to 10.0.
NR 252.75 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.76NR 252.76 Pretreatment standards for new sources (PSNS). Except as provided in 40 CFR 403.7, any new source subject to this subcategory that introduces process wastewater pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the pretreatment standards contained in s. NR 252.75.
NR 252.76 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.80NR 252.80 Applicability; description of the pigskin subcategory. The provisions of this subcategory are applicable to process wastewater discharges resulting from any tannery which processes raw or cured pigskins into finished leather by chemically dissolving or pulping the hair and tanning with chrome, then retan-wet finishing.
NR 252.80 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.81NR 252.81 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 125.30-125.32, any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
NR 252.81 Note1Within the range 6.0 to 9.0.
NR 252.81 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.82NR 252.82 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). Except as provided in 40 CFR 125.30-125.32, any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). The effluent limitations are those for BOD5, TSS, oil and grease, and pH contained in s. NR 252.81.
NR 252.82 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.83NR 252.83 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30-125.32, any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). The effluent limitations are those for total chromium contained in s. NR 252.81.
NR 252.83 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.84NR 252.84 New source performance standards (NSPS). Any new source subject to this subcategory shall achieve the following new source performance standards (NSPS):
NR 252.84 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.85NR 252.85 Pretreatment standards for existing sources (PSES). Except as provided in s. NR 252.04 and 40 CFR 403.7 and 403.13, any existing source subject to this subcategory that introduces process wastewater pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the following pretreatment standards:
NR 252.85 Note1Not less than 7.0.
NR 252.85 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86; am. Table, Register, May, 2001, No. 545, eff. 6-1-01.
NR 252.86NR 252.86 Pretreatment standards for new sources (PSNS). Except as provided in 40 CFR 403.7 and s. NR 252.04, any new source subject to this subcategory that introduces process wastewater pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the pretreatment standards contained in s. NR 252.85.
NR 252.86 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.90NR 252.90 Applicability; description of the retan-wet finish-splits subcategory. The provisions of this subcategory are applicable to process wastewater discharges resulting from any tannery which processes previously unhaired and tanned splits into finished leather by retan-wet finishing.
NR 252.90 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.91NR 252.91 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 125.30-125.32, any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
NR 252.91 Note1Within the range 6.0 to 9.0.
NR 252.91 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86; am. Table, Register, May, 2001, No. 545, eff. 6-1-01.
NR 252.92NR 252.92 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). Except as provided in 40 CFR 125.30-125.32, any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). The effluent limitations are those for BOD5, TSS, oil and grease, and pH contained in s. NR 252.91.
NR 252.92 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.93NR 252.93 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30-125.32, any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). The effluent limitations are those for total chromium contained in s. NR 252.91.
NR 252.93 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.94NR 252.94 New source performance standards (NSPS). Any new source subject to this subcategory shall achieve the following new source performance standards (NSPS):
NR 252.94 Note1Within the range 6.0 to 9.0.
NR 252.94 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.95NR 252.95 Pretreatment standards for existing sources (PSES).
NR 252.95(1)(1) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subcategory that introduces process wastewater pollutants into publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the following pretreatment standards:
NR 252.95 Note1Within the range 6.0 to 10.0.
NR 252.95(2)(2) Any existing source subject to this subcategory which processes less than 3,600 splits/day shall comply with sub. (1), except that the total chromium limitations contained in sub. (1) do not apply. 
NR 252.95 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86; am. (2), Register, May, 2001, No. 545, eff. 6-1-01.
NR 252.96NR 252.96 Pretreatment standards for new sources (PSNS). Except as provided in 40 CFR 403.7, any new source subject to this subcategory that introduces process wastewater pollutants into publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the pretreatment standards contained in s. NR 252.95.
NR 252.96 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.99NR 252.99 Cross-references. The federal citations in this chapter correspond to provisions of the Wisconsin administrative code and Wisconsin statutes. The federal citations can be cross-referenced in the following table:
NR 252.99 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
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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.