Chapter NR 252
LEATHER TANNING AND FINISHING
NR 252.015 Applicability.
NR 252.02 General definitions.
NR 252.03 Sulfide analytical method.
NR 252.035 Potassium ferricyanide titration method.
NR 252.036 Modified Monier-Williams method.
NR 252.0365 Method detection limit method.
NR 252.04 Applicability of sulfide pretreatment standards.
NR 252.05 Compliance date for pretreatment standards for existing sources (PSES).
NR 252.06 Monitoring requirements.
NR 252.10 Applicability; description of the hair pulp, chrome tan, retan-wet finishing subcategory.
NR 252.11 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.12 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.13 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.14 New source performance standards (NSPS).
NR 252.15 Pretreatment standards for existing sources (PSES).
NR 252.16 Pretreatment standards for new sources (PSNS).
NR 252.20 Applicability; description of the hair save, chrome tan, retan-wet finish subcategory.
NR 252.21 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.22 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.23 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.24 New source performance standards (NSPS).
NR 252.25 Pretreatment standards for existing sources (PSES).
NR 252.26 Pretreatment standards for new sources (PSNS).
NR 252.30 Applicability; description of the hair save or pulp, nonchrome tan, retan-wet finish subcategory.
NR 252.31 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.32 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.34 New source performance standards (NSPS).
NR 252.35 Pretreatment standards for existing sources (PSES).
NR 252.36 Pretreatment standards for new sources (PSNS).
NR 252.40 Applicability; description of the retan-wet finish-sides subcategory.
NR 252.41 Effluent limitations representing the degree of effluent reduction attainable by the control technology currently available (BPT).
NR 252.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.43 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.44 New source performance standards (NSPS).
NR 252.45 Pretreatment standards for existing sources (PSES).
NR 252.46 Pretreatment standards for new sources (PSNS).
NR 252.50 Applicability; description of the no beamhouse subcategory.
NR 252.51 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.52 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.53 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.54 New source performance standards (NSPS).
NR 252.55 Pretreatment standards for existing sources (PSES).
NR 252.56 Pretreatment standards for new sources (PSNS).
NR 252.60 Applicability; description of the through-the-blue subcategory.
NR 252.61 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.63 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.64 New source performance standards (NSPS).
NR 252.65 Pretreatment standards for existing sources (PSES).
NR 252.66 Pretreatment standards for new sources (PSNS).
NR 252.70 Applicability; description of the shearing subcategory.
NR 252.71 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.72 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.73 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.74 New source performance standards (NSPS).
NR 252.75 Pretreatment standards for existing sources (PSES).
NR 252.76 Pretreatment standards for new sources (PSNS).
NR 252.80 Applicability; description of the pigskin subcategory.
NR 252.81 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.82 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.83 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.84 New source performance standards (NSPS).
NR 252.85 Pretreatment standards for existing sources (PSES).
NR 252.86 Pretreatment standards for new sources (PSNS).
NR 252.90 Applicability; description of the retan-wet finish-splits subcategory.
NR 252.91 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
NR 252.92 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).
NR 252.93 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
NR 252.94 New source performance standards (NSPS).
NR 252.95 Pretreatment standards for existing sources (PSES).
NR 252.96 Pretreatment standards for new sources (PSNS).
NR 252.99 Cross-references.
NR 252.01
NR 252.01 Purpose. The purpose of this chapter is to establish effluent limitations, standards of performance, and pretreatment standards for discharges of process wastes from the leather tanning and finishing category of point sources and its subcategories.
NR 252.01 History
History: Cr.
Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.015
NR 252.015 Applicability. This chapter applies to any leather tanning and finishing facility which discharges or may discharge process wastewater pollutants to the waters of the state, or which introduces or may introduce process wastewater pollutants into a publicly owned treatment works.
NR 252.015 History
History: Cr.
Register, October, 1986, No. 370, eff. 11-1-86.
NR 252.02
NR 252.02 General definitions. In addition to the definitions set forth in
40 CFR Part 401, the following definitions apply to this chapter:
NR 252.02(1)
(1) “Chrome tan" means the process of converting hide into leather using a form of chromium.
NR 252.02(2)
(2) “Existing source" means any source that is not a new source.
NR 252.02(3)
(3) “Hair pulp" means the removal of hair by chemical dissolution.
NR 252.02(4)
(4) “Hair save" means the physical or mechanical removal of hair which has not been chemically dissolved, and either selling the hair as a by-product or disposing of it as a solid waste.
NR 252.02(5)
(5) “Hide" means any animal pelt or skin as received by a tannery as raw material to be processed.
NR 252.02(6)
(6) “Interference" means the discharge of sulfides in quantities which can result in human health hazards and risks to human life, and an inhibition or disruption of a POTW as defined in
40 CFR 403.3 (i).
NR 252.02(7)
(7) “Monthly average" means the arithmetic average of 8 individual data points from effluent sampling and analysis during any calendar month.
