40 CFR Appendix I to Part 257, Maximum Contaminant Levels (MCLs)

Appendix I to Part 257 - Maximum Contaminant Levels (MCLs)

Maximum Contaminant Levels (MCLs) Promulgated Under the Safe Drinking Water Act

Chemical CAS No. MCL (mg/l)
Arsenic 7440-38-2 0.05
Barium 7440-39-3 1.0
Benzene 71-343-2 0.005
Cadmium 7440-43-9 0.01
Carbon tetrachloride 56-23-5 0.005
Chromium (hexavalent) 7440-47-3 0.05
2,4-Dichlorophenoxy acetic acid 94-75-7 0.1
1,4-Dichlorobenzene 106-46-7 0.075
1,2-Dichloroethane 107-06-2 0.005
1,1-Dichloroethylene 75-35-4 0.007
Endrin 75-20-8 0.0002
Fluoride 7 4.0
Lindane 58-89-9 0.004
Lead 7439-92-1 0.05
Mercury 7439-97-6 0.002
Methoxychlor 72-43-5 0.1
Nitrate 10.0
Selenium 7782-49-2 0.01
Silver 7440-22-4 0.05
Toxaphene 8001-35-2 0.005
1,1,1-Trichloroethane 71-55-6 0.2
Trichloroethylene 79-01-6 0.005
2,4,5-Trichlorophenoxy acetic acid 93-76-5 0.01
Vinyl chloride 75-01-4 0.002
[ 56 FR 51016, Oct. 9, 1991]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

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