Wis. Admin. Code Department of Natural Resources NR 252.02 - General definitions
In addition to the definitions set forth in 40 CFR Part 401, the following definitions apply to this chapter:
(1) "Chrome tan" means the process of
converting hide into leather using a form of chromium.
(2) "Existing source" means any source that
is not a new source.
(3) "Hair
pulp" means the removal of hair by chemical dissolution.
(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.
(5) "Hide" means any animal pelt or skin as
received by a tannery as raw material to be processed.
(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).
(7) "Monthly average" means the arithmetic
average of 8 individual data points from effluent sampling and analysis during
any calendar month.
(8) "New
source," as defined for PSES and PSNS, means any building, structure, facility,
or installation from which there is or may be a discharge of pollutants, the
construction of which commenced after June 2, 1982.
(9) "New source," as defined for BPT, BAT,
BCT, and NSPS, means any point source the construction of which commenced after
January 6, 1983.
(10) "Raw
material" means the hides received by the tannery except for facilities covered
by the retan-wet finish-sides and retan-wet finish-splits subcategories where
"raw material" means the hide or split in the condition in which it is first
placed into a wet process.
(11)
"Retan-wet finish" means the final processing steps performed on a tanned hide
including, but not limited to, the following wet processes: retan, bleach,
color, and fat liquor.
(12)
"Sulfide" means total sulfide as measured by the potassium ferricyanide
titration method described in s.
NR 252.035 or the modified Monier- Williams method
described in s.
NR 252.036.
(13) "Vegetable tan" means the process of
converting hides into leather using chemicals either derived from vegetable
matter or synthesized to produce effects similar to those chemicals.
Notes
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