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<title>Rag & Air filters disposal guidelines - SWM</title>
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<p class=MsoNormal><span style='color:black'>Hi All<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'>Below are some questions posed by
a county and responses by one of our District DEP offices. As always RCRA interpretations
are not always clear cut. I recommend you contact your District office for
their take on these questions. Districts, feel free to chime in if you have
comment or something to add. Be sure to reply to ALL if you want your response
to go to everyone on the list server. Thanks. Glen<o:p></o:p></span></p>
<p><span style='font-family:"Calibri","sans-serif";color:#1F497D'>1) </span>
<span style='font-family:"Calibri","sans-serif";color:#1F497D'>Use</span> <span
style='font-family:"Calibri","sans-serif";color:#1F497D'>of the RCRA</span> <span
style='font-family:"Calibri","sans-serif";color:#1F497D'>“process
knowledge” approach (where</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>facility operator can verify no haz. mat) is extremely rare and
neither DEP nor most other counties allow for use of this approach for
the simple fact that 99% of all paints at Body Shops contain haz.
materials. It is simpler for</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>facilities to profile and make a determination than attempt to
use process knowledge approach.</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p><span style='color:#548DD4'>For waste paint thinners and related solvent in
Paint and Body shops, no determination is necessary because the waste thinner
is, by virtue of listing (F003 and F005), a hazardous waste and must be managed
as such. It is also characteristically hazardous for ignitability (D001).
Rags used with paint thinners in a body shop will also be RCRA hazardous for
listing, but can be commercially laundered if the rags are reusable. Spray
booth filters have the potential to be characteristically hazardous for the 8
RCRA Metals. <o:p></o:p></span></p>
<p><span style='color:#548DD4'>Process knowledge may be acceptable, but it
depends on the nature of the waste and the likelihood that contaminants from
various sources may contribute to the hazardous nature of the waste (what if
one of the employees is coming in on the weekends and spraying vehicles with
old imported paints?). For example, it is unlikely we would accept process
knowledge for waste parts washer solvent based on the properties described in
the product’s MSDS (high-flashpoint petroleum solvents or alkaline
aqueous solutions), because the facility is cleaning parts in the parts washer
or using other chemicals (like aerosol chlorinated brake cleaners) that may
make the resultant waste hazardous. For spray booth filters at body
shops, it is typical that they are spraying one type of paint and unlikely that
other contaminants may be introduced to the filters besides those from the
paint; a process knowledge statement with supporting documentation may be acceptable
in this case. If a facility chooses to make a process knowledge
determination on their waste, it must be comprehensive and include
documentation to substantiate their claims; however, it is at the
Department’s discretion to not accept the claim if it is not
substantiative.</span><o:p></o:p></p>
<p><span style='font-family:"Calibri","sans-serif";color:#1F497D'>2) </span>
<span style='font-family:"Calibri","sans-serif";color:#1F497D'>DEP and most of
the other counties have been</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>requiring</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>profiling of all rags and filters to determine proper disposal
methods. This</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>profiling should occur</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>ONCE every five years OR if the facility process changes in any way
(e.g. using new paints,</span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'>etc.). </span> <span style='font-family:"Calibri","sans-serif";
color:#1F497D'> Waste determination can be affected by the amount of paint
allowed to</span> <span style='font-family:"Calibri","sans-serif";color:#1F497D'>accumulate
on the filters.</span><o:p></o:p></p>
<p><span style='color:#548DD4'>The HW C&E has proposed that facilities
perform determinations at a frequency of every 2 to 3 years; however, that is
only guidance. We offer the guidance to body shops that the frequency of
filter changes could affect the nature of their waste in that the longer they
are in place, the possibility that greater concentrations of regulated
compounds could be present. If a facility provides a written process
knowledge statement for their filters, they must include this information in
their claim for our evaluation of this consideration. <o:p></o:p></span></p>
<p><span style='font-family:"Calibri","sans-serif";color:#1F497D'>3) </span>
<span style='font-family:"Calibri","sans-serif";color:#1F497D'>Profiling for
filters and rags should include Total Metals and TCLP</span> <span
style='font-family:"Calibri","sans-serif";color:#1F497D'>(do you typically
include flammability?)</span><o:p></o:p></p>
<p><span style='color:#548DD4'>We don’t usually request total metals
because the TCLP value is what is designated by the regulations. If the total
metals concentrations are less than 20 times the TCLP regulatory concentration,
then it is unlikely that hazardous concentrations would leach out.
However, if a facility does perform a total metals analysis, then they can
proceed with TCLP analysis for the particular metals, if any, that have
concentrations above 20 times to verify the nature of their waste. We
don’t typically include ignitability on a dry solid (if the filters are <u>wet</u>
with paint or solvent, there’s a problem!). <o:p></o:p></span></p>
<p><span style='font-family:"Calibri","sans-serif";color:#1F497D'>4) </span>
<span style='font-family:"Calibri","sans-serif";color:#1F497D'>Evaporation of
paints is not allowable method since this is considered treatment. Only
empty paint cans and spray paint cans can be disposed of. In general, all
containers with paints or solvents must be maintained closed at all times in
the facility.</span><o:p></o:p></p>
<p><span style='color:#548DD4'>RCRA-empty containers can go to the trash.
Spray cans are also reactive wastes (D003) because of the propellant; if the
propellant is expended (for example, using a drum-top can puncturing device),
then the cans can go to the trash or even better recycled as scrap metal. The
drum-top can puncturing devices render the cans nonreactive (acceptable form of
treatment), and collect any residues from the can for hazardous waste disposal
(f required based on the can’s contents). Container closure is always a
requirement.<o:p></o:p></span></p>
<p><span style='font-family:"Calibri","sans-serif";color:#1F497D'>5) </span>
<span style='font-family:"Calibri","sans-serif";color:#1F497D'>Rags don’t
count</span> <span style='font-family:"Calibri","sans-serif";color:#1F497D'>against
SQG status. </span><o:p></o:p></p>
<p><span style='color:#548DD4'>Rags don’t count if they are commercially
laundered at a facility with approval/permitting from the POTW. If rags
are being managed as hazardous waste, or if they are being thrown in the trash
without a HW determination having been performed, then they count towards a
facility’s generator status.<o:p></o:p></span></p>
<p><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:olive'> </span></b><o:p></o:p></p>
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