Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 808 - SPECIAL WASTE CLASSIFICATIONS › Subpart H - CATEGORICAL AND CHARACTERISTIC WASTES › Appendix B - Toxicity Hazard

Current through Register Vol. 48, No. 28, July 12, 2024
This Appendix describes the method by which a generator of
				  special waste or the waste source shall determine the toxic score for a
				  waste.
a) The wastestream equivalent toxic concentration
				  (Ceq) is calculated as follows:
Ceq = A * SUM(Ci / Bi * Ti)
where:
1) SUM means the sum of the results of the
				  calculation in parentheses for each component of the wastestream;
2) Ci is the concentration of component i as a
				  percent of the waste by weight;
3) Ti is a measure of the toxicity of component i,
				  as provided in subsection (h);
4) A is a constant equal to 300; and
BOARD NOTE: A is a constant used to allow the
				  entry of percent values for Ci, and to adjust the results so that a reference
				  material, 100 percent copper sulfate, with an oral toxicity of 300 mg/kg,
				  achieves an equivalent toxic concentration of 100.
5) Bi is a conversion factor used to convert the
				  toxicity of component i (Ti) to an equivalent oral toxicity. Bi is determined
				  from subsection (i).
b) The toxic amount (M) is calculated as
				  follows:
M = S * Ceq
where:
1) S is the maximum size of a wastestream shipment
				  in kg/month (Such maximum size shall be specified as a condition of the
				  wastestream classification.); and
2) Ceq is the equivalent concentration from
				  subsection (a).
c) The toxic score is calculated as
				  follows:
1) If the toxic amount (M) is less than 100, the
				  toxic score is 0.
2) If the toxic amount is greater than or equal to
				  100 and less than 1000, the toxic score is 1.
3) If the toxic amount is greater than or equal to
				  1000 and less than 10,000, the toxic score is 2.
4) If the toxic amount is greater than or equal to
				  10,000, the toxic score is 3.
BOARD NOTE: 100 kg/month of the reference
				  material, 100 percent copper sulfate, has a "toxic amount" of 10,000, defining
				  the boderline between a "toxic score" of 2 or 3 for a small quantity
				  generator.
d) The toxic score shall be used as
				  follows:
1) If the toxic score is 0 or 3, the toxic score
				  shall be used for the purposes of Section 808.245 without adjustment.
2) If the toxic score is 1 or 2, the toxic score
				  shall be adjusted based on environmental fate, pursuant to subsections (e), (f)
				  and (g).
e) The environmental fate score (F) is calculated
				  as follows:
F = SUM(Ci * Li)
where:
1) SUM means the sum of the results of the
				  calculation in parentheses for each component of the wastestream;
2) Ci is the concentration of component i as a
				  percent of the waste by weight; and
3) Li is the environmental level of component i,
				  as determined by subsection (j).
f) adjusted toxic score as follows:
1) If the environmental fate score (F) is less
				  than 100, subtract 1 from the toxic score;
2) If the environmental fate score is greater than
				  or equal to 100 and less than 200, the toxic score is not modified;
3) If the environmental fate score is greater than
				  or equal to 200, add 1 to the toxic score.
g) Use the toxic score or adjusted toxic score
				  calculated pursuant to subsections (b) through (f) for the purposes of Section
				  808.245.
h) Sources of toxicity data.
1) The generator is required to provide
				  information to substantiate that any waste is other than a type A waste.
2) Carcinogens and mutagens. If available, use a
				  TD50 oral rat to represent toxicity based on carcinogenicity and mutagenicity.
				  Otherwise:
A) Carcinogens are assigned a Ti of 0.1 mg/kg;
				  and
B) Mutagens are assigned a Ti of 0.6 mg/kg.
3) Toxicity values shall be selected according to
				  the following criteria:
A) Toxicities are converted to equivalent oral
				  toxicities as specified in subsection (i);
B) Toxicity values are ranked by source according
				  to the following priorities, with the sources listed in descending order of
				  priority.
i) First oral rat; then inhalation rat; then
				  dermal rabbit; then aquatic toxicity.
ii) If data from the bases is unavailable, then
				  other mammalian toxicity values;
C) If there is more than one toxicity value for
				  the toxicity from the highest priority available source, the lowest (most
				  toxic) equivalent oral toxicity value is used.
i) Conversion factors for equivalent oral
				  toxicities. The following conversion factors must be used to convert toxicity
				  values to equivalent oral toxicities (Bi) (If a carcinogen or mutagen is
				  assigned a value for Ti in the absence of a TD50, Bi is
				  assigned a value of 1.):
Toxicity measure
Units
Bi
Oral - LD50
mg/kg
1.
Carcinogen/mutagen -
							 TD50
mg/kg
1.
Aquatic - 48 or 96 hour
							 LC50
ppm
5.
Inhalation - LC50
mg/1
25.
Dermal - LD50
mg/kg
0.25
j) Environmental levels. If the waste constituent
				  is innocuous, the environmental level (Li) is equal to 0. Otherwise, Li for a
				  component is the highest level for that constituent in the following table,
				  based on bioaccumulation, persistence and solubility. (If a value on the
				  boundary between ranges, the higher value of Li is used.):
Bioaccumulation
Persistence
Solubility
Li
Min.
Max.
Min.
Max.
Min.
Max.
5
_ _ _
365
_ _ _
10,000
_ _ _
3
4
5
30
365
1000
10,000
2
0
4
0
30
0
1000
1
1) "Innocuous" waste constituents are those for
				  which BiTi, as determined pursuant to subsection (a), is greater than 5000
				  mg/kg.
2) Bioaccumulation is measured as the logarithm to
				  the base 10 of the n-octanol/water partition coefficient for the waste
				  constituent, as measured pursuant to ASTM E 1147, incorporated by reference in
				  Section 808.111.
3) Persistence is determined pursuant to
				  subsection (k).
4) Solubility is measured as parts per million on
				  a weight basis. Solubility may be measured pursuant to ASTM E 1148,
				  incorporated by reference in Section 808.111.
k) Persistence. If available, a value for
				  persistence, measured, pursuant to subsection (k)(1), must be used. Otherwise,
				  the table of subsection (k)(2) must be used.
1) Persistence must be measured pursuant to ASTM E
				  896, incorporated by reference in Section 808.111.
2) Persistence may be estimated using the
				  following table. (The longest half-life indicated must be used for constituents
				  which fit into more than one category):
Type of Compound or Material
Half Life
(days)
Metal, metal oxide or inorganic oxide
366
Inorganic salts
366
Asbestos
366
Clay
366
Plastics or polymers
366
Pesticides
366
Halogenated hydrocarbons
366
Polyaromatic hydrocarbons and biphenyls
366
Phthalate esters
366
Paper products
366
Fats, oils and greases
366
Resins and pigments
366
Aromatic and alicyclic hydrocarbons
31
Aliphatic hydrocarbons
More than 10 carbons
31
10 carbons or less
1
Waste constituents not otherwise listed
366