(i) It exhibits any of the characteristics of
hazardous waste identified in subpart C of this part. However, any mixture of a
waste from the extraction, beneficiation, and processing of ores and minerals
excluded under 261.4(b)(7) and any other solid waste exhibiting a
characteristic of hazardous waste under subpart C is a hazardous waste only if
it exhibits a characteristic that would not have been exhibited by the excluded
waste alone if such mixture had not occurred, or if it continues to exhibit any
of the characteristics exhibited by the non-excluded wastes prior to mixture.
Further, for the purposes of applying the Toxicity Characteristic to such
mixtures, the mixture is also a hazardous waste if it exceeds the maximum
concentration for any contaminant listed in table 1 to 261.24 that would not
have been exceeded by the excluded waste alone if the mixture had not occurred,
or if it continues to exceed the maximum concentration for any contaminant
exceeded by the nonexempt waste prior to mixture. (11/90; 12/93)
(ii) It is listed in subpart D and has not
been excluded from the lists in subpart D under 260.20 and 260.22 of this
chapter.
(iv) It is a mixture of
solid waste and one or more hazardous wastes listed in subpart D of this part
and has not been excluded from this paragraph (a)(2) of this section under
260.20 and 260.22, paragraph (g) of this section, or paragraph (h) of this
section; however, the following mixtures of solid wastes and hazardous wastes
listed in subpart D of this part are not hazardous wastes (except by
application of paragraph (a)(2) (i) or (ii) of this section) if the generator
can demonstrate that the mixture consists of wastewater the discharge of which
is subject to regulation under the S. C. Pollution Control Act Section
48-1-10
et seq., of the S. C. Code of Laws of 1976, as amended and under either
section402 or section307(b)(b) of the Clean Water Act (including wastewater at
facilities which have eliminated the discharge of wastewater) and: (11/90;
12/93)
(A) One or more of the following spent
solvents listed in 261.31 - benezene, carbon tetrachloride,
tetrachloroethylene, trichloroethylene or the scrubber waters derived-from the
combustion of these spent solvents--- Provided, that the maximum total weekly
usage of these solvents (other than the amounts that can be demonstrated not to
be discharged to wastewater) divided by the average weekly flow of wastewater
into the headworks of the facility's wastewater treatment or pretreatment
system does not exceed 1 part per million; or the total measured concentration
of these solvents entering the headworks of the facility's wastewater treatment
system (at facilities subject to regulation under the Clean Air Act, as
amended, at 40 CFR parts 60, 61, or 63, or at facilities subject to an
enforceable limit in a federal operating permit that minimizes fugitive
emissions), does not exceed 1 part per million on an average weekly basis. Any
facility that uses benzene as a solvent and claims this exemption must use an
aerated biological wastewater treatment system and must use only lined surface
impoundments or tanks prior to secondary clarification in the wastewater
treatment system. Facilities that choose to measure concentration levels must
file a copy of their sampling and analysis plan with the Department. A facility
must file a copy of a revised sampling and analysis plan only if the initial
plan is rendered inaccurate by changes in the facility's operations. The
sampling and analysis plan must include the monitoring point location
(headworks), the sampling frequency and methodology, and a list of constituents
to be monitored. A facility is eligible for the direct monitoring option once
they receive confirmation that the sampling and analysis plan has been received
by the Department. The Department may reject the sampling and analysis plan if
the Department finds that, the sampling and analysis plan fails to include the
above information; or the plan parameters would not enable the facility to
calculate the weekly average concentration of these chemicals accurately. If
the Department rejects the sampling and analysis plan or if the Department
finds that the facility is not following the sampling and analysis plan, the
Department shall notify the facility to cease the use of the direct monitoring
option until such time as the bases for rejection are corrected; or
(B) One or more of the following spent
solvents listed in Section261.31 - methylene chloride, 1,1,1-trichloroethane,
chlorobenzene, o-dichlorobenzene, cresols, cresylic acid, nitrobenzene,
toluene, methyl ethyl ketone, carbon disulfide, isobutanol, pyridine, spent
chlorofluorocarbon solvents, 2-ethoxyethanol, or the scrubber waters
derived-from the combustion of these spent solvents - provided that the maximum
total weekly usage of these solvents (other than the amounts that can be
demonstrated not to be discharged to wastewater) divided by the average weekly
flow of wastewater into the headworks of the facility's wastewater treatment or
pre-treatment system does not exceed 25 parts per million; or the total
measured concentration of these solvents entering the headworks of the
facility's wastewater treatment system (at facilities subject to regulation
under the Clean Air Act as amended, at 40 CFR parts 60, 61, or 63, or at
facilities subject to an enforceable limit in a federal operating permit that
minimizes fugitive emissions), does not exceed 25 parts per million on an
average weekly basis. Facilities that choose to measure concentration levels
must file a copy of their sampling and analysis plan with the the Department as
the context requires, or an authorized representative. A facility must file a
copy of a revised sampling and analysis plan only if the initial plan is
rendered inaccurate by changes in the facility's operations. The sampling and
analysis plan must include the monitoring point location (headworks), the
sampling frequency and methodology, and a list of constituents to be monitored.
A facility is eligible for the direct monitoring option once they receive
confirmation that the sampling and analysis plan has been received by the
Department. The Department may reject the sampling and analysis plan if the
Department finds that, the sampling and analysis plan fails to include the
above information; or the plan parameters would not enable the facility to
calculate the weekly average concentration of these chemicals accurately. If
the Department rejects the sampling and analysis plan or if the Department
finds that the facility is not following the sampling and analysis plan, the
Department shall notify the facility to cease the use of the direct monitoring
option until such time as the bases for rejection are corrected; or
(C) One of the following wastes listed in
261.32, provided that the wastes are discharged to the refinery oil recovery
sewer before primary oil water solids separation heat exchanger bundle cleaning
sludge from the petroleum refining industry (EPA Hazardous Waste No. K050),
crude oil storage tank sediment from petroleum refining operations (EPA
Hazardous Waste No. K169), clarified slurry oil tank sediment and/or in-line
filter separation solids from petroleum refining operations (EPA Hazardous
Waste No. K170), spent hydrotreating catalyst (EPA Hazardous Waste No. K171),
and spent hydrorefining catalyst (EPA Hazardous Waste No. K172); or
(D) A discarded hazardous waste, commercial
chemical product, or chemical intermediate listed in 261.31 through 261.33,
arising from de minimis losses of these materials. For purposes of this
paragraph (a)(2)(iv)(D), "de minimis" losses are inadvertent releases to a
wastewater treatment system, including those from normal material handling
operations (e.g., spills from the unloading or transfer of materials from bins
or other containers, leaks from pipes, valves or other devices used to transfer
materials); minor leaks of process equipment, storage tanks or containers;
leaks from well maintained pump packings and seals; sample purgings; relief
device discharges; discharges from safety showers and rinsing and cleaning of
personal safety equipment; and rinsate from empty containers or from containers
that are rendered empty by that rinsing. Any manufacturing facility that claims
an exemption for de minimis quantities of wastes listed in 261.31 through
261.32, or any nonmanufacturing facility that claims an exemption for de
minimis quantities of wastes listed in subpart D of this part must either have
eliminated the discharge of wastewaters or have included in its Clean Water Act
permit application or submission to its pretreatment control authority the
constituents for which each waste was listed (in 261 Appendix VII) of this
part; and the constituents in the table "'Treatment Standards for Hazardous
Wastes"' in 268.40 for which each waste has a treatment standard (i.e., Land
Disposal Restriction constituents). A facility is eligible to claim the
exemption once the permit writer or control authority has been notified of
possible de minimis releases via the Clean Water Act permit application or the
pretreatment control authority submission. A copy of the Clean Water permit
application or the submission to the pretreatment control authority must be
placed in the facility's on-site files; or
(E) Wastewater resulting from laboratory
operations containing toxic (T) wastes listed in subpart D of this part,
Provided, That the annualized average flow of laboratory wastewater does not
exceed one percent of total wastewater flow into the headworks of the
facility's wastewater treatment or pre-treatment system, or provided the
wastes, combined annualized average concentration does not exceed one part per
million in the headworks of the facility's wastewater treatment or
pre-treatment facility. Toxic (T) wastes used in laboratories that are
demonstrated not to be discharged to wastewater are not to be included in this
calculation; or (revised 5/96)
(F)
One or more of the following wastes listed in 261.32 - wastewaters from the
production of carbamates and carbamoyl oximes (EPA Hazardous Waste No. K157) -
Provided that the maximum weekly usage of formaldehyde, methyl chloride,
methylene chloride, and triethylamine (including all amounts that cannot be
demonstrated to be reacted in the process, destroyed through treatment, or is
recovered, i.e., what is discharged or volatilized) divided by the average
weekly flow of process wastewater prior to any dilution into the headworks of
the facility's wastewater treatment system does not exceed a total of 5 parts
per million by weight OR the total measured concentration of these chemicals
entering the headworks of the facility's wastewater treatment system (at
facilities subject to regulation under the Clean Air Act as amended, at 40 CFR
parts 60, 61, or 63, or at facilities subject to an enforceable limit in a
federal operating permit that minimizes fugitive emissions), does not exceed 5
parts per million on an average weekly basis. Facilities that choose to measure
concentration levels must file copy of their sampling and analysis plan with
the Department or an authorized representative. A facility must file a copy of
a revised sampling and analysis plan only if the initial plan is rendered
inaccurate by changes in the facility's operations. The sampling and analysis
plan must include the monitoring point location (headworks), the sampling
frequency and methodology, and a list of constituents to be monitored. A
facility is eligible for the direct monitoring option once they receive
confirmation that the sampling and analysis plan has been received by the
Department. The Department may reject the sampling and analysis plan if the
Department finds that, the sampling and analysis plan fails to include the
above information; or the plan parameters would not enable the facility to
calculate the weekly average concentration of these chemicals accurately. If
the Department rejects the sampling and analysis plan or if the Department
finds that the facility is not following the sampling and analysis plan, the
Department shall notify the facility to cease the use of the direct monitoring
option until such time as the bases for rejection are corrected; or
(G) Wastewaters derived-from the treatment of
one or more of the following wastes listed in 261.32 - organic waste (including
heavy ends, still bottoms, light ends, spent solvents, filtrates, and
decantates) from the production of carbamates and carbamoyl oximes (EPA
Hazardous Waste No. K156). - Provided, that the maximum concentration of
formaldehyde, methyl chloride, methylene chloride, and triethylamine prior to
any dilutions into the headworks of the facility's wastewater treatment system
does not exceed a total of 5 milligrams per liter OR the total measured
concentration of these chemicals entering the headworks of the facility's
wastewater treatment system (at facilities subject to regulation under the
Clean Air Act as amended, at 40 CFR parts 60, 61, or 63, or at facilities
subject to an enforceable limit in a federal operating permit that minimizes
fugitive emissions), does not exceed 5 milligrams per liter on an average
weekly basis. Facilities that choose to measure concentration levels must file
copy of their sampling and analysis plan with the Department or an authorized
representative. A facility must file a copy of a revised sampling and analysis
plan only if the initial plan is rendered inaccurate by changes in the
facility's operations. The sampling and analysis plan must include the
monitoring point location (headworks), the sampling frequency and methodology,
and a list of constituents to be monitored. A facility is eligible for the
direct monitoring option once they receive confirmation that the sampling and
analysis plan has been received by the Department. The Department may reject
the sampling and analysis plan if the Department finds that, the sampling and
analysis plan fails to include the above information; or the plan parameters
would not enable the facility to calculate the weekly average concentration of
these chemicals accurately. If the Department rejects the sampling and analysis
plan or if the Department finds that the facility is not following the sampling
and analysis plan, the Department shall notify the facility to cease the use of
the direct monitoring option until such time as the bases for rejection are
corrected.
(v)
Rebuttable presumption for used oil. Used oil containing more than 1000 ppm
total halogens is presumed to be a hazardous waste because it has been mixed
with halogenated hazardous waste listed in subpart D of part 261 of this
chapter. Persons may rebut this presumption by demonstrating that the used oil
does not contain hazardous waste (for example, by using an analytical method
from SW-846, Third Edition, to show that the used oil does not contain
significant concentrations of halogenated hazardous constituents listed in
appendix VIII of part 261 of this chapter). EPA Publication SW-846, Third
Edition, is available for the cost of $110.00 from the Government Printing
Office, Superintendent of Documents, PO Box 371954, Pittsburgh, PA 15250-7954,
202-783-3238 (document number 955-001-00000 -1).
(A) The rebuttable presumption does not apply
to metalworking oils/fluids containing chlorinated paraffins, if they are
processed, through a tolling agreement, to reclaim metalworking oils/fluids.
The presumption does apply to metalworking oils/fluids if such oils/fluids are
recycled in any other manner, or disposed.
(B) The rebuttable presumption does not apply
to used oils contaminated with chlorofluorocarbons (CFCs) removed from
refrigeration units where the CFCs are destined for reclamation. The rebuttable
presumption does apply to used oils contaminated with CFCs that have been mixed
with used oil from sources other than refrigeration units.