Haw. Code R. § 11-20-4

Current through April, 2024
Section 11-20-4 - Maximum contaminant levels for organic chemicals

The following are the MCLs for organic chemicals.

(a) (Reserved)
(b) (Reserved)
(c) (Reserved)
(d) The following MCLs for organic contaminants apply to community and non-transient, non-community water systems.

Contaminant

MCL (mg/ L)

CAS. No.

(1) Benzene

0.005

71-43-2

(2) Carbon tetrachloride

0.005

56-23-5

(3) o-Dichlorobenzene

0.6

95-50-1

(4) para-Dichlorobenzene

0.075

106-46-7

(5) 1,2-Dichloroethane

0.005

107-06-2

(6) 1,1-Dichloroethylene

0.007

75-35-4

(7) cis-1,2-Dichloroethylene

0.07

156-59-2

(8) trans-1,2-Dichloroethylene

0.1

156-60-5

(9) 1,2-Dichloropropane (DCP)

0.005

78-87-5

(10) Ethylbenzene

0.7

100-41-4

(11) Monochlorobenzene

0.1

108-90-7

(12) Styrene

0.1

100-42-5

(13) Tetrachloroethylene

0.005

127-18-4

(14) Toluene

1

108-88-3

(15) 1,1,1-Trichloroethane

0.2

71-55-6

(16) Trichloroethylene

0.005

79-01-6

(17) 1,2,3-Trichloropropane(TCP)

0.0006

96-18-4

(18) Vinyl chloride

0.002

75-01-4

(19) Xylenes (total)

10

1330-20-7

(20) Dichloromethane

0.005

75-09-2

(21) 1,2,4-Trichlorobenzene

0.07

120-82-1

(22) 1,1,2-Trichloroethane

0.005

79-00-5

(e) The following MCLs for synthetic organic contaminants apply to community and non-transient, non-community water systems.

Contaminant

MCL(mg/l)

CAS No.

(1) Alachlor

0.002

15972-60-8

(2) Aldicarb

0.003

116-06-3

(3) Aldicarb sulfoxide

0.004

1646-87-3

(4) Aldicarb sulfone

0.002

1646-87-4

(5) Atrazine

0.003

912-24-9

(6) Carbofuran

0.04

1563-66-2

(7)Chlordane

0.002

57-74-9

(8) Dibromochloropropane(DBCP)

0.00004

96-12-8

(9) 2,4-D

0.07

94-75-7

(10) Ethylene dibromide(EDB)

0.00004

106-93-4

(11) Heptachlor

0.0004

76-44-8

(12) Heptachlor epoxide

0.0002

1024-57-3

(13) Lindane

0.0002

58-89-9

(14) Methoxychlor

0.04

72-43-5

(15) Polychlorinated biphenyls (PCB)

0.0005

1336-36-3

(16) Pentachlorophenol

0.001

87-86-5

(17) Toxaphene

0.003

8001-35-2

(18) 2,4,5-TP (Silvex)

0.05

93-72-1

(19) Benzo[a]pyrene

0.0002

50-32-8

(20) Dalapon

0.2

75-99-0

(21) Di(2-ethylhexyl) adipate

0.4

103-23-1

(22) Di(2-ethylhexyl) phthalate

0.006

117-81-7

(23) Dinoseb

0.007

88-85-7

(24) Diquat

0.02

85-00-7

(25) Endothall

0.1

145-73-3

(26) Endrin

0.002

72-20-8

(27) Glyphosate

0.7

1071-53-6

(28) Hexachlorobenzene

0.001

118-74-1

(29) Hexachlorocyclopentadiene

0.05

77-47-4

(30) Oxamyl (Vydate)

0.2

3135-22-0

(31) Picloram

0.5

1918-02-1

(32) Simazine

0.004

122-34-9

(33) 2,3,7,8-TCDD (Dioxin)

3 x 10-8

1746-01-6

(f) The best available technologies (BATs), treatment techniques, or other means available for achieving compliance with the organic contaminant MCLs are identified as either granular activated carbon (GAC), packed tower aeration (PTA), or oxidation (OX) in 40 C.F.R. § 141.61(b).

Haw. Code R. § 11-20-4

[Eff 12/26/81; am and comp 3/7/92; am and comp 1/2/93; am and comp 12/15/94; am and comp 10/13/97; am and comp 9/7/99; am and comp 11/30/02; am and comp 12/16/05; am and comp 11/28/11; comp MAY 02 2014 ] (Auth: HRS §§ 340E-2, 340E-9) (Imp: HRS §§ 340E-2, 340E-9; 42 U.S.C. §§ 300g-1, 300g-2; 40 C.F.R. Parts 141, 142, § 142.10, § 141.12, § 141.61 )
Am and Comp 12/28/2017
Am and comp 10/29/2020