Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 661 - Hazardous Waste Identification And Listing
Subchapter A - General
Section NR 661.0007 - Residues of hazardous waste in empty containers
Universal Citation: WI Admin Code ยง NR 661.0007
Current through August 26, 2024
(1)
(a) Any hazardous waste remaining in either
an empty container or an inner liner removed from an empty container, as
defined in sub. (2), is not subject to regulation under chs.
NR 661 to 670, or to the
notification requirements under s.
NR 660.07.
(b) Any hazardous waste in either a container
that is not empty or an inner liner removed from a container that is not empty,
as defined in sub. (2), is subject to regulation under chs.
NR 661 to 670 and to the
notification requirements under s.
NR 670.007.
(2)
(a) A
container or an inner liner removed from a container that has held any
hazardous waste, except a waste that is a compressed gas or that is identified
as an acute hazardous waste listed in s.
NR 661.0031 or 661.0033(5), is empty if subd. 1. is met
and either subds. 2. or 3. are met:
1. All
wastes have been removed that can be removed using the practices commonly
employed to remove materials from that type of container, such as pouring,
pumping, and aspirating.
2. No more
than 2.5 centimeters, or one inch, of residue remain on the bottom of the
container or inner liner.
3. One of
the following:
a. No more than 3 percent by
weight of the total capacity of the container remains in the container or inner
liner if the container is less than or equal to 119 gallons in size.
b. No more than 0.3 percent by weight of the
total capacity of the container remains in the container or inner liner if the
container is greater than 119 gallons in size.
(b) A container that has held a hazardous
waste that is a compressed gas is empty when the pressure in the container
approaches atmospheric pressure.
(c) A container or an inner liner removed
from a container that has held an acute hazardous waste listed in s.
NR 661.0031 or 661.0033(5) is empty if any of the
following are met:
1. The container or inner
liner has been triple rinsed using a solvent capable of removing the commercial
chemical product or manufacturing chemical intermediate.
2. The container or inner liner has been
cleaned by another method that has been shown in the scientific literature, or
by tests conducted by the generator, to achieve equivalent removal.
3. In the case of a container, the inner
liner that prevented contact of the commercial chemical product or
manufacturing chemical intermediate with the container, has been
removed.
(3) Except as provided under s. NR 666.507(3) and (4), containers of hazardous waste pharmaceuticals are subject to s. NR 666.507 for determining when they are considered empty, in lieu of this section.
Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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