§261.24 Toxicity Characteristic
(a) A solid waste exhibits
the characteristic of toxicity if, using the Toxicity
Characteristic Leaching Procedure, test Method 1311 in "Test
Methods for Evaluating Solid Waste, Physical/Chemical
Methods," EPA Publication SW-846, as incorporated by
reference in § 260.11 of this chapter, the extract from a
representative sample of the waste contains any of the
contaminants listed in table 1 at the concentration equal to or
greater than the respective value given in that table. Where the
waste contains less than 0.5 percent filterable solids, the waste
itself, after filtering using the methodology outlined in Method
1311, is considered to be the extract for the purpose of this
section.
(b) A solid waste that exhibits the characteristic of toxicity
has the EPA Hazardous Waste Number specified in Table I which
corresponds to the toxic contaminant causing it to be hazardous.
Table I -- Maximum Concentration of Contaminants for the Toxicity Characteristic
| EPA Hazardous
Regulatory Waste Level Number{1} |
Contaminant | CAS No.{2} | (mg/L) |
| D004 | Arsenic | 7440-38-2 | 5.0 |
| D005 | Barium | 7440-39-3 | 100.0 |
| D018 | Benzene | 71-43-2 | 0.5 |
| D006 | Cadmium | 7440-43-9 | 1.0 |
| D019 | Carbon tetrachloride | 56-23-5 | 0.5 |
| D020 | Chlordane | 57-74-9 | 0.03 |
| D021 | Chlorobenzene | 108-90-7 | 100.0 |
| D022 | Chloroform | 67-66-3 | 6.0 |
| D007 | Chromium | 7440-47-3 | 5.0 |
| D023 | o-Cresol | 95-48-7 | {4}200.0 |
| D024 | m-Cresol | 108-39-4 | {4}200.0 |
| D025 | p-Cresol | 106-44-5 | {4}200.0 |
| D026 | Cresol | - - - - - | {4}200.0 |
| D016 | 2,4-D | 94-75-7 | 10.0 |
| D027 | 1,4-Dichlorobenzene | 106-46-7 | 7.5 |
| D028 | 1,2-Dichloroethane | 107-06-2 | 0.5 |
| D029 | 1,1-Dichloroethylene | 75-35-4 | 0.7 |
| D030 | 2,4-Dinitrotoluene | 121-14-2 | {3}0.13 |
| D012 | Endrin | 72-20-8 | 0.02 |
| D031 | Heptachlor (and its epoxide) | 76-44-8 | 0.008 |
| D032 | Hexachlorobenzene | 118-74-1 | {3}0.13 |
| D033 | Hexachlorobutadiene | 87-68-3 | 0.5 |
| D034 | Hexachloroethane | 67-72-1 | 3.0 |
| D008 | Lead | 7439-92-1 | 5.0 |
| D013 | Lindane | 58-89-9 | 0.4 |
| D009 | Mercury | 7439-97-6 | 0.2 |
| D014 | Methoxychlor | 72-43-5 | 10.0 |
| D035 | Methyl ethyl ketone | 78-93-3 | 200.0 |
| D036 | Nitrobenzene | 98-95-3 | 2.0 |
| D037 | Pentrachlorophenol | 87-86-5 | 100.0 |
| D038 | Pyridine | 110-86-1 | {3}5.0 |
| D010 | Selenium | 7782-49-2 | 1.0 |
| D011 | Silver | 7440-22-4 | 5.0 |
| D039 | Tetrachloroethylene | 127-18-4 | 0.7 |
| D015 | Toxaphene | 8001-35-2 | 0.5 |
| D040 | Trichloroethylene | 79-01-6 | 0.5 |
| D041 | 2,4,5-Trichlorophenol | 95-95-4 | 400.0 |
| D042 | 2,4,6-Trichlorophenol | 88-06-2 | 2.0 |
| D017 | 2,4,5-TP (Silvex) | 93-72-1 | 1.0 |
| D043 | Vinyl chloride | 75-01-4 | 0.2 |
{1} Hazardous waste
number.
{2} Chemical abstracts service number.
{3} Quantitation limit is greater than the calculated regulatory
level. The quantitation limit therefore becomes the regulatory
level.
{4} If o-, m-, and p-Cresol concentrations cannot be
differentiated, the total cresol (D026) concentration is used.
The regulatory level of total cresol is 200 mg/l.
[45 FR 33119, May 19, 1980, as amended at 55 FR 11798, March 29,
1990; 55 FR 22684, June 1, 1990; 55 FR 26987, corrected at June
29, 1990; 58 FR 46040, Aug. 31, 1993]