40 CFR 261.24 Alpha

Environmental Protection Agency, 40 CFR 261.24

TABLE 1—MAXIMUM CONCENTRATION OF CONTAMINANTS FOR THE TOXICITY CHARATERISTIC

EPA Haz Waste Number	Contaminant	CAS No.	Regulatory Level (mg/L)
D004	Arsenic	cas# 7440–38–2	5.0
D005	Barium	cas# 7440–39–3	100.0
D018	Benzene	cas# 71–43–2	0.5
D006	Cadmium	cas# 7440–43–9	1.0
D019	Carbon tetrachloride	cas# 56–23–5	0.5
D020	Chlordane	cas# 57–74–9	0.03
D021	Chlorobenzene	cas# 108–90–7	100.0
D022	Chloroform	cas# 67–66–3	6.0
D007	Chromium	cas# 7440–47–3	5.0
D023	o-Cresol	cas# 95–48–7	200.0	2
D024	m-Cresol	cas# 108–39–4	200.0	2
D025	p-Cresol	cas# 106–44–5	200.0	2
D026	Cresol		200.0	2
D016	2,4-D	cas# 94–75–7	10.0
D027	1,4-Dichlorobenzene	cas# 106–46–7	7.5
D028	1,2-Dichloroethane	cas# 107–06–2	0.5
D029	1,1-Dichloroethylene	cas# 75–35–4	0.7
D030	2,4-Dinitrotoluene	cas# 121–14–2	0.13	1
D012	Endrin	cas# 72–20–8	0.02
D031	Heptachlor (and its ep-oxide)	cas# 76–44–8	0.008
D032	Hexachlorobenzene	cas# 118–74–1	0.13	1
D033	Hexachlorobutadiene	cas# 87–68–3	0.5
D034	Hexachloroethane	cas# 67–72–1	3.0
D008	Lead	cas# 7439–92–1	5.0
D013	Lindane	cas# 58–89–9	0.4
D009	Mercury	cas# 7439–97–6	0.2
D014	Methoxychlor	cas# 72–43–5	10.0
D035	Methyl ethyl ketone	cas# 78–93–3	200.0
D036	Nitrobenzene	cas# 98–95–3	2.0
D037	Pentrachlorophenol	cas# 87–86–5	100.0
D038	Pyridine	cas# 110–86–1	5.0	1
D010	Selenium	cas# 7782–49–2	1.0
D011	Silver	cas# 7440–22–4	5.0
D039	Tetrachloroethylene	cas# 127–18–4	0.7
D015	Toxaphene	cas# 8001–35–2	0.5
D040	Trichloroethylene	cas# 79–01–6	0.5
D041	2,4,5-Trichlorophenol	cas# 95–95–4	400.0
D042	2,4,6-Trichlorophenol	cas# 88–06–2	2.0
D017	2,4,5-TP (Silvex)	cas# 93–72–1	1.0
D043	Vinyl chloride	cas# 75–01–4	0.2

1 Quantitation limit is greater than the calculated regulatory level. The

quantitation limit therefore becomes the regulatory level.

2 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.