NR 273.003(28)
(28) “Milling” means the mechanical treatment of a nonferrous metal to produce a powder or to coat one component of a powder mixture with another.
NR 273.003(29)
(29) “Neat oil” means a pure oil, with no or few impurities added, used mostly as a lubricant.
NR 273.003(30)
(30) “New source” means any point source for which construction commenced after March 4, 1984, and from which pollutants may be discharged either directly into waters of the state or into a POTW.
NR 273.003(31)
(31) “Nonferrous metal” means any pure metal other than iron and any metal alloy for which a metal other than iron is the alloy's major constituent in percent by weight.
NR 273.003(32)
(32) “Off-kg” and “off-lb” mean the mass of metal or metal alloy removed from a forming operation at the end of a process cycle for transfer to a different machine or process.
NR 273.003(33)
(33) “Powder forming” means forming and compressing powder into a fully dense finished shape, usually within closed dies.
NR 273.003(34)
(34) “Precious metals” means gold, platinum, palladium, and silver and any alloy containing 30% or more by weight of these metals.
NR 273.003(35)
(35) “Product testing” means operations such as dye penetrant testing, hydrotesting, and ultrasonic testing.
NR 273.003(36)
(36) “Refractory metals” means the metals columbium, tantalum, molybdenum, rhenium, tungsten, and vanadium and their alloys.
NR 273.003(37)
(37) “Rolling” means the reduction in thickness or diameter of a workpiece by passing it between lubricated steel rollers.
NR 273.003(38)
(38) “Roll bonding” means the process by which a permanent bond is created between 2 metals by rolling under high pressure in a bonding mill.
NR 273.003(39)
(39) “Sawing” means cutting a workpiece with a band, blade, or circular disc having teeth.
NR 273.003(40)
(40) “Shot casting” means the production of shot by pouring molten metal in finely divided streams to form spherical particles.
NR 273.003(41)
(41) “Stationary casting” means the pouring of molten metal into molds and allowing the metal to cool.
NR 273.003(42)
(42) “Surface treatment” means a chemical or electrochemical treatment applied to the surface of a metal, such as pickling, etching, conversion coating, phosphating, and chromating, and any rinse or multiple stage rinsing which follows.
NR 273.003(43)
(43) “Swaging” means a process in which a solid point is formed at the end of a tube, rod, or bar by the repeated blows of one or more pairs of opposing dies.
NR 273.003(44)
(44) “Tube reducing” means an operation which reduces the diameter and wall thickness of tubing with a mandrel and a pair of rolls with tapered grooves.
NR 273.003(45)
(45) “Tumbling” means an operation in which castings, forgings, or parts pressed from metal powder are rotated in a barrel with ceramic or metal slugs or abrasives to remove scale, fins, or burrs, either dry or with an aqueous solution.
NR 273.003(46)
(46) “Ultrasonic testing” means a nondestructive test in which sound at a frequency above 20 Hz is applied to metal which has been immersed in a liquid, usually water, to locate inhomogeneities or structural discontinuities.
NR 273.003(47)
(47) “Wet air pollution control scrubbers” means air pollution control devices used to remove particulates and fumes from the air by entraining the pollutants in water spray.
NR 273.003 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.004(1)
(1) Any existing source subject to this chapter which discharges to waters of the state shall achieve:
NR 273.004(1)(a)
(a) The effluent limitations representing BPT by July 1, 1977; and
NR 273.004(2)
(2) Any new source subject to this chapter which discharges to waters of the state shall achieve NSPS at the commencement of discharge.
NR 273.004(3)
(3) Any existing source subject to this chapter which discharges to a POTW shall achieve PSES by August 23, 1988.
NR 273.004(4)
(4) Any new source subject to this chapter which discharges to a POTW shall achieve PSNS at the commencement of discharge.
NR 273.004 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.01
NR 273.01 Applicability; description of the lead-tin-bismuth subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from lead-tin-bismuth forming.
NR 273.01 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.011
NR 273.011 Discharge prohibitions. Any facility subject to this subchapter may not discharge process wastewater pollutants from the following sources:
NR 273.011 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.012 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.013 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.014 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.015
NR 273.015 Pretreatment standards for existing sources. 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 the limitations set forth in
s. NR 273.013.
NR 273.015 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.016
NR 273.016 Pretreatment standards for new sources. 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 the limitations set forth in
s. NR 273.013.
NR 273.016 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.02
NR 273.02 Applicability; description of the magnesium subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from magnesium forming.
NR 273.02 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.021
NR 273.021 Discharge prohibitions. Any facility subject to this subchapter may not discharge process wastewater pollutants from the following sources:
NR 273.021 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.022 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.023 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.024 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.025
NR 273.025 Pretreatment standards for existing sources. 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 the limitations set forth in
s. NR 273.023.
NR 273.025 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.026
NR 273.026 Pretreatment standards for new sources. 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 the limitations set forth in
s. NR 273.023.
NR 273.026 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.03
NR 273.03 Applicability; description of the nickel-cobalt subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from nickel-cobalt forming.
NR 273.03 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
NR 273.031(1)
(1) Any facility subject to this subchapter may not discharge process wastewater pollutants from the following sources:
NR 273.031(1)(f)
(f) Annealing and solution heat treatment contact cooling water;
NR 273.031(1)(g)
(g) Hydrostatic tube testing and ultrasonic testing wastewater; and
NR 273.031(2)(a)(a) Tube reducing spent lubricant process wastewater pollutants may not be discharged, except as provided in
par. (b).
NR 273.031(2)(b)
(b) Tube reducing spent lubricant process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, if the facility owner or operator demonstrates according to
pars. (c),
(d),
(e), and
(f) that the concentrations of nitrosamine compounds in the discharged wastewater do not exceed the following levels:
-
See PDF for table 
NR 273.031(2)(c)
(c) For the demonstration required by
par. (b), the facility owner or operator shall use the analytical methods approved by
ch. NR 219, Table C.
NR 273.031(2)(d)
(d) The demonstration required by
par. (b) shall be made once per month until the demonstration has been made for all 3 nitrosamine compounds for 6 consecutive months. After this time, the demonstration may be made once per quarter. If a sample is found to contain any of the 3 nitrosamine compounds at concentrations greater than those specified in
par. (b), the actions set forth in
par. (e) shall be taken and the demonstration required by
par. (b) shall be made once per month until it has been made for all 3 nitrosamine compounds for 6 consecutive months.
NR 273.031(2)(e)
(e) If sampling results show that any of the 3 nitrosamine compounds is present in the process wastewater at concentrations greater than those set forth in
par. (b), the facility owner or operator shall ensure that starting within 30 days of receiving written notification of the sampling results no tube reducing spent lubricant wastewater is discharged until one of the following conditions is met:
NR 273.031(2)(e)1.
1. The owner or operator performs a subsequent analysis which demonstrates that the concentrations of 3 regulated nitrosamine compounds do not exceed the levels set forth in
par. (b); or
NR 273.031(2)(e)2.
2. The owner or operator substitutes a new tube reducing lubricant and thereafter complies with the requirements of
par. (d); or
NR 273.031(2)(e)3.
3. Determines the source of the pollutants whose concentration exceeded the level set forth in
par. (b) and demonstrates to the satisfaction of the permit issuing authority that the source has been eliminated.
NR 273.031(2)(f)
(f) The concentration limits specified in
par. (b) apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if 2 conditions are met:
NR 273.031(2)(f)1.
1. Any dilution caused by the other wastewaters is accounted for when determining the appropriate allowable discharge concentration; and
NR 273.031(2)(f)2.
2. An analytical method of sufficient sensitivity is used to measure the levels of each of the 3 nitrosamine compounds in the wastewater being sampled.
NR 273.031 History
History: Cr.
Register, September, 1990, No. 417, eff. 10-1-90.
