Statutes, codes, and regulations
Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTIONPart 721 - IDENTIFICATION AND LISTING OF HAZARDOUS WASTE
Subpart C - CHARACTERISTICS OF HAZARDOUS WASTE
Section 721.124 - Toxicity Characteristic

Ill. Admin. Code tit. 35 § 721.124

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Current through Register Vol. 48, No. 45, November 8, 2024
Section 721.124 - Toxicity Characteristic
a) A solid waste (except manufactured gas plant waste) exhibits the characteristic of toxicity if, using Method 1311 (Toxicity Characteristic Leaching Procedure (TCLP)) in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods", USEPA publication number EPA-530/SW-846, as incorporated by reference in 35 Ill. Adm. Code 720.111(a), the extract from a representative sample of the waste contains any of the contaminants listed in the table in subsection (b) at a concentration equal to or greater than the respective value given in that table. If the waste contains less than 0.5 percent filterable solids, the waste itself, after filtering using the methodology outlined in Method 1311, is the extract for this Section.

BOARD NOTE: The reference to the "EP toxicity test" in 35 Ill. Adm. Code 808.410(b)(4) is to be understood as referencing the test required by this Section.

b) A solid waste that exhibits the characteristic of toxicity has the USEPA hazardous waste number specified in the following table that corresponds to the toxic contaminant causing it to be hazardous.

MAXIMUM CONCENTRATION OF CONTAMINANTS FOR THE TOXICITY CHARACTERISTIC

USEPA Hazardous Waste No.

Contaminant

CAS Number

Note

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

2

200.0

D024

m-Cresol

108-39-4

2

200.0

D025

p-Cresol

106-44-5

2

200.0

D026

Cresol

2

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

1

0.13

D012

Endrin

72-20-8

0.02

D031

Heptachlor (and its epoxide)

76-44-8

0.008

D032

Hexachlorobenzene

118-74-1

1

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

1

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

Notes to Table:

1 Quantitation limit is greater than the calculated regulatory level. The quantitation limit therefore becomes the regulatory level.
2 If o-, m-, p-cresol concentrations cannot be differentiated, the total cresol (D026) concentration is used. The regulatory level of total cresol is 200.0 mg/l.

Ill. Admin. Code tit. 35, § 721.124

Amended at 30 Ill. Reg. 2992, effective February 23, 2006

Amended at 42 Ill. Reg. 21673, effective 11/19/2018
Amended at 48 Ill. Reg. 9827, effective 6/20/2024