40 C.F.R. § 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.
| 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 | Pentachlorophenol | 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. | |||
Notes of Decisions
Cited in 38
cases (4 in the last 5 years), 1986–2025 · leading case: Appalachian Voices v. McCarthy, 989 F. Supp. 2d 30 (D.D.C. 2013).
Appalachian Voices v. McCarthy, 989 F. Supp. 2d 30 (D.D.C. 2013). “2d at 1310, as determined using the Toxicity Characteristic Leaching Procedure (“Leaching Procedure”) set forth in EPA Publication SW-846, 40 C.F.R. § 261.24 . Disposal of all other solid wastes is regulated under Subtitle D of the Act.”
Commonwealth v. Snyder, 963 A.2d 396 (Pa. 2009). “*399 DEP tested the samples using the Toxicity Characteristic Leaching Procedure ("TCLP"), authorized for that purpose by the United States Environmental Protection Agency ("EPA") in 40 C.F.R. § 261.24 and implemented into Pennsylvania law by 25 Pa.”
City of New York v. Exxon Corp., 766 F. Supp. 177 (S.D.N.Y. 1991). “4(b) to 40 C.F.R. § 261.24 would be meaningless for any chromium-containing waste, as well as for lead- and cadmium-containing wastes.”
City of New York v. Exxon Corp., 744 F. Supp. 474 (S.D.N.Y. 1990). “” 40 C.F.R. § 261.24 (a). “Table 1,” entitled “Maximum Concentration of Contaminants for Characteristic of EP Toxicity,” lists, inter alia, cadmium, maximum concentration of 1 mg/1; chromium, 5 mg/1; and lead, 5 mg/1.”
United States v. Cunningham, 194 F.3d 1186 (11th Cir. 1999). “'' 40 C.F.R. § 261.24 (a) states, in relevant part: "A solid waste exhibits the characteristic of toxicity if .”
Coleman v. Watts, 87 F. Supp. 2d 944 (D. Ariz. 1998). “ng the “slag” exceeded the Soil Remediation Levels 4 for arsenic and lead in residential soils; and (5) the “Toxicity Characteristic Leaching Procedure (TCLP) for the eight RCRA metals in the soils containing the ‘slag’ and the septic tank sludge did not indicate detectable…”
Connecticut Coastal Fishermen's Ass'n v. Remington Arms Co., 989 F.2d 1305 (2d Cir. 1993). “Lead Shot The district court concluded that the lead shot was hazardous waste as a matter of law because it satisfied the requirements of 40 C.F.R. § 261.24 for toxicity. See Til F.”
United States v. Mark O. Henry, 136 F.3d 12 (1st Cir. 1998). “40 C.F.R. § 261.24 introduces the Toxicity Characteristic Leaching Procedure (TCLP) as a means of testing for toxicity and provides that when this testing procedure shows that the waste contains any of the contaminants listed in table 1 at a concentration equal to or greater…”
Aiello v. Town of Brookhaven, 136 F. Supp. 2d 81 (E.D.N.Y 2001). “See 40 C.F.R. § 261.24 & Table 1. Consequently, no sub-chapter III chemicals have contributed to the viability of plaintiffs’ (a)(1)(B) claim: Nonetheless, plaintiffs have brought a hybrid complaint and, unless the subchapter III component of their RCRA claims be deemed…”
Interfaith Cmty. Org. v. Honeywell Int'l, Inc., 263 F. Supp. 2d 796 (D.N.J. 2003). “The Court further finds that the chromium waste that Mutual disposed of at the Site is the cause of the extensive chromium contamination of soil, groundwater, surface water and sediments at and near the Site. The final element of liability under RCRA requires a showing that the…”
Ass'n of Battery Recyclers, Inc. v. U.S. Env't Prot. Agency, 208 F.3d 1047 (D.C. Cir. 2000). “40 C.F.R. § 261.24 . The EPA created the TCLP, and its predecessor the Extraction Procedure (EP), as part of its response to the command of the Congress to “promulgate regulations identifying the characteristics of hazardous waste.”
24 Leggett Street Ltd. P'ship v. Beacon Indus., Inc., 685 A.2d 305 (Conn. 1996). “23 [1988]), and toxicity ( 40 C.F.R. § 261.24 [1988]). Public Act No.”
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