[Code of Federal Regulations]

[Title 40, Volume 22]

[Revised as of July 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR141.50]



[Page 432-433]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 141_NATIONAL PRIMARY DRINKING WATER REGULATIONS--Table of Contents

 

     Subpart F_Maximum Contaminant Level Goals and Maximum Residual 

                        Disinfectant Level Goals

 

Sec. 141.50  Maximum contaminant level goals for organic contaminants.





    (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:



------------------------------------------------------------------------

                                                                MCLG in

                         Contaminant                              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



[[Page 433]]





(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

------------------------------------------------------------------------





[50 FR 46901, Nov. 13, 1985, as amended at 52 FR 20674, June 2, 1987; 52 

FR 25716, July 8, 1987; 56 FR 3592, Jan. 30, 1991; 56 FR 30280, July 1, 

1991; 57 FR 31846, July 17, 1992]