Link to an amendment published at 89 FR 32744, Apr. 26, 2024.
(a) MCLGs are zero for the following contaminants:
(1) Benzene
(2) Vinyl chloride
(3) Carbon tetrachloride
(4) 1,2-dichloroethane
(5) Trichloroethylene
(6) Acrylamide
(7) Alachlor
(8) Chlordane
(9) Dibromochloropropane
(10) 1,2-Dichloropropane
(11) Epichlorohydrin
(12) Ethylene dibromide
(13) Heptachlor
(14) Heptachlor epoxide
(15) Pentachlorophenol
(16) Polychlorinated biphenyls (PCBs)
(17) Tetrachloroethylene
(18) Toxaphene
(19) Benzo[a]pyrene
(20) Dichloromethane (methylene chloride)
(21) Di(2-ethylhexyl)phthalate
(22) Hexachlorobenzene
(23) 2,3,7,8-TCDD (Dioxin)
(b) MCLGs for the following contaminants are as indicated:
| Contaminant
| MCLG in mg/l
|
|---|
| (1) 1,1-Dichloroethylene | 0.007
|
| (2) 1,1,1-Trichloroethane | 0.20
|
| (3) para-Dichlorobenzene | 0.075
|
| (4) Aldicarb | 0.001
|
| (5) Aldicarb sulfoxide | 0.001
|
| (6) Aldicarb sulfone | 0.001
|
| (7) Atrazine | 0.003
|
| (8) Carbofuran | 0.04
|
| (9) o-Dichlorobenzene | 0.6
|
| (10) cis-1,2-Dichloroethylene | 0.07
|
| (11) trans-1,2-Dichloroethylene | 0.1
|
| (12) 2,4-D | 0.07
|
| (13) Ethylbenzene | 0.7
|
| (14) Lindane | 0.0002
|
| (15) Methoxychlor | 0.04
|
| (16) Monochlorobenzene | 0.1
|
| (17) Styrene | 0.1
|
| (18) Toluene | 1
|
| (19) 2,4,5-TP | 0.05
|
| (20) Xylenes (total) | 10
|
| (21) Dalapon | 0.2
|
| (22) Di(2-ethylhexyl)adipate | .4
|
| (23) Dinoseb | .007
|
| (24) Diquat | .02
|
| (25) Endothall | .1
|
| (26) Endrin | .002
|
| (27) Glyphosate | .7
|
| (28) Hexachlorocyclopentadiene | .05
|
| (29) Oxamyl (Vydate) | .2
|
| (30) Picloram | .5
|
| (31) Simazine | .004
|
| (32) 1,2,4-Trichlorobenzene | .07
|
| (33) 1,1,2-Trichloroethane | .003 |