Appendix I to Part 257 - Maximum Contaminant Levels (MCLs)
40:27.0.1.4.38.4.36.37.19 : Appendix I
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]