Ala. Admin. Code 335, WATER DIVISION - WATER QUALITY PROGRAM, ch. 335-6-10, app A - [Effective 6/14/2025]

POLLUTANT

CAS Registry Number

REFERENCE DOSE mg(kg-day)

CANCER POTENCY FACTOR (kg-day)/mg

BIOCONCENTRATION FACTOR l/kg

RELATIVE SOURCE CONTRIBUTION

Acenaphthene

83329

0.06

242

1.0

Acrolein

107028

0.00056

215

1.0

Acrylonitrile

107131

0.54

30

Aldrin

309002

17

4670

Anthracene

120127

0.3

30

1.0

Antimony

7440360

0.0004

1

0.4

Arsenic

7440382

1.75

44

Benzene

71432

0.029

5.2

Benzidine

92875

230

87.5

Benzo(a)anthracene

56553

7.3

30

Benzo(a)pyrene

50328

7.3

30

Benzo(b)fluoranthene

205992

7.3

30

Benzo(k)fluoranthene

207089

7.3

30

Bis(2-chloroethyl)ether

111444

1.1

6.9

Bis(2-chloroisopropyl) ether

108601

0.04

2.47

1.0

Bis(2-ethylhexyl)phthalate

117817

0.014

130

Bromoform

75252

0.0079

3.75

Butylbenzyl phthalate

85687

0.2

414

1.0

Carbon tetrachloride

56235

0.13

18.75

Chlordane

57749

0.35

14100

Chlorobenzene

108907

0.02

10.3

0.2

Chlorodibromomethane

124481

0.084

3.75

Chloroform

67663

0.0061

3.75

2-Chloronaphthalene

91587

0.08

202

1.0

2-Chlorophenol

95578

0.005

134

1.0

Chrysene

218019

7.3

30

Cyanide

57125

0.02

1

0.2

4,4'-DDD

72548

0.24

53600

4,4'-DDE

72559

0.34

53600

4,4'-DDT

50293

0.34

53600

Dibenzo(a,h)anthracene

53703

7.3

30

1,2-Dichlorobenzene

95501

0.09

55.6

0.2

1,3-Dichlorobenzene

541731

0.0134

55.6

1.0

1,4-Dichlorobenzene

106467

0.0134

55.6

0.2

3,3'-Dichlorobenzidine

91941

0.45

312

Dichlorobromomethane

75274

0.062

3.75

1,2-Dichloroethane

107062

0.091

1.2

1,1-Dichloroethylene

75354

0.05

5.6

0.2

2,4-Dichlorophenol

120832

0.003

40.7

1.0

1,2-Dichloropropane

78875

0.67

4.1

1,3-Dichloropropylene

542756

0.1

1.9

Dieldrin

60571

16

4670

Diethyl phthalate

84662

0.8

73

1.0

2,4 Dimethylphenol

105679

0.02

93.8

1.0

Dimethyl phthalate

131113

10

36

1.0

Di-n-butyl phthalate

84742

0.1

89

1.0

4,6-Dinitro-2-methylphenol

534521

0.00039

5.5

1.0

2,4-Dinitrophenol

51285

0.002

1.5

1.0

2,4 Dinitrotoluene

121142

0.31

3.8

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

1746016

17500

5000

1,2-Diphenylhydrazine

122667

0.8

24.9

Endosulfan (alpha)

959988

0.006

270

1.0

Endosulfan (beta)

33213659

0.006

270

1.0

Endosulfan sulfate

1031078

0.006

270

1.0

Endrin

72208

0.0003

3970

0.2

Endrin aldehyde

7421934

0.0003

3970

1.0

Ethylbenzene

100414

0.1

37.5

0.2

Fluoranthene

206440

0.04

1150

1.0

Fluorene

86737

0.04

30

1.0

Heptachlor

76448

4.5

11200

Heptachlor epoxide

1024573

9.1

11200

Hexachlorobenzene

118741

1.6

8690

Hexachlorobutadiene

87683

0.078

2.78

Hexachlorocyclohexane (alpha)

319846

6.3

130

Hexachlorocyclohexane (beta)

319857

1.8

130

Hexachlorocyclohexane (gamma)

58899

0.003

130

0.2

Hexachlorocyclopentadiene

77474

0.006

4.34

0.2

Hexachloroethane

67721

0.014

86.9

Indeno (1,2,3-cd) pyrene

193395

7.3

30

Isophorone

78591

0.00095

4.38

Mercury

7439976

0.0001

5500

1.0

Methyl bromide

74839

0.0014

3.75

1.0

Methylene chloride

75092

0.0075

0.9

Nickel

7440020

0.02

47

1.0

Nitrobenzene

98953

0.0005

2.89

1.0

N-Nitrosodimethylamine

62759

51

0.026

N-Nitrosodi-n-propylamine

621647

7

1.13

N-Nitrosodiphenylamine

86306

0.0049

136

PCB-1016 1

12674112

2.0

31200

PCB-1221 1

11104282

2.0

31200

PCB-1232 1

11141165

2.0

31200

PCB-1242 1

53469219

2.0

31200

PCB-1248 1

12672296

2.0

31200

PCB-1254 1

11097691

2.0

31200

PCB-1260 1

11096825

2.0

31200

Pentachlorophenol

87865

0.12

11

Phenol

108952

0.3

1.4

1.0

Pyrene

129000

0.03

30

1.0

Selenium

7782492

0.005

4.8

1.0

1,1,2,2-Tetrachloroethane

79345

0.2

5

Tetrachloroethylene

127184

0.039776

30.6

Thallium

7440280

0.000068

116

0.2

Toluene

108883

0.2

10.7

0.2

Toxaphene

8001352

1.1

13100

1,2-Trans-dichloroethylene

156605

0.02

1.58

0.2

1,2,4-Trichlorobenzene

120821

0.01

114

0.2

1,1,2-Trichloroethane

79005

0.057

4.5

Trichloroethylene

79016

0.0126

10.6

2,4,6-Trichlorophenol

88062

0.011

150

Vinyl chloride

75014

1.4

1.17

Zinc

7440666

0.3

47

1.0

1 The criteria for Polychlorinated Biphenyls (PCBs) apply to total PCBs, which is defined as the sum of the seven particular Aroclors (1016, 1221,1232, 1242, 1248, 1254, and 1260) listed in this table.

Notes

Ala. Admin. Code 335, WATER DIVISION - WATER QUALITY PROGRAM, ch. 335-6-10, app A
Amended: Filed April 25, 1997; eff. May 30, 1997. Amended: Filed August 17, 2005; eff. September 21, 2005. Amended: Filed April 22, 2008; eff. May 27, 2008. Amended: Filed October 20, 2008; eff. November 24, 2008. Amended by Alabama Administrative Monthly Volume XLIII, Issue No. 07, April 30, 2025, eff. 6/14/2025.

Author: James E. McIndoe, Lynn Sisk, Chris L. Johnson

Statutory Authority: Code of Ala. 1975, §§

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.