40 CFR 261.24 - Toxicity characteristic.

Updated to:July 2013
CONTENT

Title 40: Protection of Environment

CHAPTER I: ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

SUBCHAPTER I: SOLID WASTES (CONTINUED)

PART 261: IDENTIFICATION AND LISTING OF HAZARDOUS WASTE

Subpart C: Characteristics of Hazardous Waste

261.24 - Toxicity characteristic.

(a) A solid waste (except manufactured gas plant 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 1 which corresponds to the toxic contaminant causing it to be hazardous.

Table 1?Maximum Concentration of Contaminants for the Toxicity Characteristic

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.

EPA HW No. 1

Contaminant CAS No. 2

Regulatory Level (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 Tetrachloroethyl-ene 127-18-4 0.7
D015 Toxaphene 8001-35-2 0.5
D040 Trichloroethyl-ene 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

[55 FR 11862, Mar. 29, 1990, as amended at 55 FR 22684, June 1, 1990; 55 FR 26987, June 29, 1990; 58 FR 46049, Aug. 31, 1993; 67 FR 11254, Mar. 13, 2002; 71 FR 40259, July 14, 2006]