Appendix I to Part 257—Maximum Contaminant Levels (MCLs) RegSense Waste/HazWaste CFR Regulations Waste Environmental Protection Agency (EPA) CFR Appendix Environmental Solid Waste English Focus Area USA
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] ['Waste']['Solid Waste']
