§ 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California.

(a) Scope. This section promulgates criteria for priority toxic pollutants in the State of California for inland surface waters and enclosed bays and estuaries. This section also contains a compliance schedule provision.

(b)

(1) Criteria for Priority Toxic Pollutants in the State of California as described in the following table:

A		B Freshwater		C Saltwater		D Human health (10−6 risk for carcinogens) for consumption of:
Number compound	CAS No.	Criterion maximum conc. ^d (µg/L) B1	Criterion continuous conc. ^d (µg/L) B2	Criterion maximum conc. ^d (µg/L) C1	Criterion continuous conc. ^d (µg/L) C2	Water and organisms (µg/L) D1	Organisms only (µg/L) D2
1. Antimony	7440360					^{a s} 14	^{a t} 4300
2. Arsenic ^b	7440382	^{i m w} 340	^{i m w} 150	^{i m} 69	^{i m} 36
3. Beryllium	7440417					( ⁿ)	( ⁿ)
4. Cadmium ^b	7440439	^{e i m w x} 4.3	^{e i m w} 2.2	^{i m} 42	^{i m} 9.3	( ⁿ)	( ⁿ)
5a. Chromium (III)	16065831	^{e i m o} 550	^{e i m o} 180			( ⁿ)	( ⁿ)
5b. Chromium (VI) ^b	18540299	^{i m w} 16	^{i m w} 11	^{i m} 1100	^{i m} 50	( ⁿ)	( ⁿ)
6. Copper ^b	7440508	^{e i m w x} 13	^{e i m w} 9.0	^{i m} 4.8	^{i m} 3.1	1300
7. Lead ^b	7439921	^{e i m z} 65	^{e i m z} 2.5	^{i m} 210	^{i m} 8.1	( ⁿ)	( ⁿ)
8. Mercury ^b	7439976	[Reserved]	[Reserved]	[Reserved]	[Reserved]	^a 0.050	^a 0.051
9. Nickel ^b	7440020	^{e i m w} 470	^{e i m w} 52	^{i m} 74	^{i m} 8.2	^a 610	^a 4600
10. Selenium ^b	7782492	^p [Reserved]	^q 5.0	^{i m} 290	^{i m} 71	( ⁿ)	( ⁿ)
11. Silver ^b	7440224	^{e i m} 3.4		^{i m} 1.9
12. Thallium	7440280					^{a s} 1.7	^{a t} 6.3
13. Zinc ^b	7440666	^{e i m w x} 120	^{e i m w} 120	^{i m} 90	^{i m} 81
14. Cyanide ^b	57125	^o 22	^o 5.2	^rthnsp;1	^r 1	^a 700	^{a j} 220,000
15. Asbestos	1332214					^{k s} 7,000,000 fibers/l
16. 2,3,7,8-TCDD (Dioxin)	1746016					^c> 0.000000013	^c> 0.000000014
17. Acrolein	107028					^s> 320	^t> 780
18. Acrylonitrile	107131					^{a c s} 0.059	^{a c t} 0.66
19. Benzene	71432					^{a c} 1.2	^{a c} 71
20. Bromoform	75252					^{a c} 4.3	^{a c} 360
21. Carbon Tetrachloride	56235					^{a c s} 0.25	^{a c t} 4.4
22. Chlorobenzene	108907					^{a s} 680	^{a j t} 21,000
23. Chlorodibromomethane	124481					^{a c y} 0.41	^{a c} 34
24. Chloroethane	75003
25. 2-Chloroethylvinyl Ether	110758
26. Chloroform	67663					[Reserved]	[Reserved]
27. Dichlorobromomethane	75274					^{a c y} 0.56	^{a c} 46
28. 1,1-Dichloroethane	75343
29. 1,2-Dichloroethane	107062					^{a c s} 0.38	^{a c t} 99
30. 1,1-Dichloroethylene	75354					^{a c s} 0.057	^{a c t} 3.2
31. 1,2-Dichloropropane	78875					^a 0.52	^a 39
32. 1,3-Dichloropropylene	542756					^{a s} 10	^{a t} 1,700
33. Ethylbenzene	100414					^{a s} 3,100	^{a t} 29,000
34. Methyl Bromide	74839					^a 48	^a 4,000
35. Methyl Chloride	74873					( ⁿ)	( ⁿ)
36. Methylene Chloride	75092					^{a c} 4.7	^{a c} 1,600
37. 1,1,2,2-Tetrachloroethane	79345					^{a c s} 0.17	^{a c t} 11
38. Tetrachloroethylene	127184					^{c s} 0.8	^{c t} 8.85
39. Toluene	108883					^a 6,800	^a 200,000
40. 1,2-Trans-Dichloroethylene	156605					^a 700	^a 140,000
41. 1,1,1-Trichloroethane	71556					( ⁿ)	( ⁿ)
42. 1,1,2-Trichloroethane	79005					^{a c s} 0.60	^{a c t} 42
43. Trichloroethylene	79016					^{c s} 2.7	^{c t} 81
44. Vinyl Chloride	75014					^{c s} 2	^{c t} 525
45. 2-Chlorophenol	95578					^a 120	^a 400
46. 2,4-Dichlorophenol	120832					^{a s} 93	^{a t} 790
47. 2,4-Dimethylphenol	105679					^a 540	^a 2,300
48. 2-Methyl-4,6-Dinitrophenol	534521					^s> 13.4	^t> 765
49. 2,4-Dinitrophenol	51285					^{a s} 70	^{a t} 14,000
50. 2-Nitrophenol	88755
51. 4-Nitrophenol	100027
52. 3-Methyl-4-Chlorophenol	59507
53. Pentachlorophenol	87865	^{f w} 19	^{f w} 15	13	7.9	^{a c} 0.28	^{a c j} 8.2
54. Phenol	108952					^a 21,000	^{a j t} 4,600,000
55. 2,4,6-Trichlorophenol	88062					^{a c} 2.1	^{a c} 6.5
56. Acenaphthene	83329					^a 1,200	^a 2,700
57. Acenaphthylene	208968
58. Anthracene	120127					^a 9,600	^a 110,000
59. Benzidine	92875					^{a c s} 0.00012	^{a c t} 0.00054
60. Benzo(a)Anthracene	56553					^{a c} 0.0044	^{a c} 0.049
61. Benzo(a)Pyrene	50328					^{a c} 0.0044	^{a c} 0.049
62. Benzo(b)Fluoranthene	205992					^{a c} 0.0044	^{a c} 0.049
63. Benzo(ghi)Perylene	191242
64. Benzo(k)Fluoranthene	207089					^{a c} 0.0044	^{a c} 0.049
65. Bis(2-Chloroethoxy)Methane	111911
66. Bis(2-Chloroethyl)Ether	111444					^{a c s} 0.031	^{a c t} 1.4
67. Bis(2-Chloroisopropyl)Ether	108601					^a 1,400	^{a t} 170,000
68. Bis(2-Ethylhexyl)Phthalate	117817					^{a c s} 1.8	^{a c t} 5.9
69. 4-Bromophenyl Phenyl Ether	101553
70. Butylbenzyl Phthalate	85687					^a 3,000	^a 5,200
71. 2-Chloronaphthalene	91587					^a 1,700	^a 4,300
72. 4-Chlorophenyl Phenyl Ether	7005723
73. Chrysene	218019					^{a c} 0.0044	^{a c} 0.049
74. Dibenzo(a,h)Anthracene	53703					^{a c} 0.0044	^{a c} 0.049
75. 1,2 Dichlorobenzene	95501					^a 2,700	^a 17,000
76. 1,3 Dichlorobenzene	541731					400	2,600
77. 1,4 Dichlorobenzene	106467					400	2,600
78. 3,3′-Dichlorobenzidine	91941					^{a c s} 0.04	^{a c t} 0.077
79. Diethyl Phthalate	84662					^{a s} 23,000	^{a t} 120,000
80. Dimethyl Phthalate	131113					^s> 313,000	^t> 2,900,000
81. Di-n-Butyl Phthalate	84742					^{a s} 2,700	^{a t} 12,000
82. 2,4-Dinitrotoluene	121142					^{c s} 0.11	^{c t} 9.1
83. 2,6-Dinitrotoluene	606202
84. Di-n-Octyl Phthalate	117840
85. 1,2-Diphenylhydrazine	122667					^{a c s} 0.040	^{a c t} 0.54
86. Fluoranthene	206440					^a 300	^a 370
87. Fluorene	86737					^a 1,300	^a 14,000
88. Hexachlorobenzene	118741					^{a c} 0.00075	^{a c} 0.00077
89. Hexachlorobutadiene	87683					^{a c s} 0.44	^{a c t} 50
90. Hexachlorocyclopentadiene	77474					^{a s} 240	^{a j t} 17,000
91. Hexachloroethane	67721					^{a c s} 1.9	^{a c t} 8.9
92. Indeno(1,2,3-cd) Pyrene	193395					^{a c} 0.0044	^{a c} 0.049
93. Isophorone	78591					^{c s} 8.4	^{c t} 600
94. Naphthalene	91203
95. Nitrobenzene	98953					^{a s} 17	^{a j t} 1,900
96. N-Nitrosodimethylamine	62759					^{a c s} 0.00069	^{a c t} 8.1
97. N-Nitrosodi-n-Propylamine	621647					^a 0.005	^a 1.4
98. N-Nitrosodiphenylamine	86306					^{a c s} 5.0	^{a c t} 16
99. Phenanthrene	85018
100. Pyrene	129000					^a 960	^a 11,000
101. 1,2,4-Trichlorobenzene	120821
102. Aldrin	309002	^g> 3		^g> 1.3		^{a c} 0.00013	^{a c} 0.00014
103. alpha-BHC	319846					^{a c} 0.0039	^{a c} 0.013
104. beta-BHC	319857					^{a c} 0.014	^{a c} 0.046
105. gamma-BHC	58899	^w> 0.95		^g> 0.16		^c> 0.019	^c> 0.063
106. delta-BHC	319868
107. Chlordane	57749	^g> 2.4	^g> 0.0043	^g> 0.09	^g> 0.004	^{a c} 0.00057	^{a c} 0.00059
108. 4,4′-DDT	50293	^g> 1.1	^g> 0.001	^g> 0.13	^g> 0.001	^{a c} 0.00059	^{a c} 0.00059
109. 4,4′-DDE	72559					^{a c} 0.00059	^{a c} 0.00059
110. 4,4′-DDD	72548					^{a c} 0.00083	^{a c} 0.00084
111. Dieldrin	60571	^w> 0.24	^w> 0.056	^g> 0.71	^g> 0.0019	^{a c} 0.00014	^{a c} 0.00014
112. alpha-Endosulfan	959988	^g> 0.22	^g> 0.056	^g> 0.034	^g> 0.0087	^a 110	^a 240
113. beta-Endosulfan	33213659	^g> 0.22	^g> 0.056	^g> 0.034	^g> 0.0087	^a 110	^a 240
114. Endosulfan Sulfate	1031078					^a 110	^a 240
115. Endrin	72208	^w> 0.086	^w> 0.036	^g> 0.037	^g> 0.0023	^a 0.76	^{a j} 0.81
116. Endrin Aldehyde	7421934					^a 0.76	^{a j} 0.81
117. Heptachlor	76448	^g> 0.52	^g> 0.0038	^g> 0.053	^g> 0.0036	^{a c} 0.00021	^{a c} 0.00021
118. Heptachlor Epoxide	1024573	^g> 0.52	^g> 0.0038	^g> 0.053	^g> 0.0036	^{a c} 0.00010	^{a c} 0.00011
119-125. Polychlorinated biphenyls (PCBs)			^ur> 0.014		^ur> 0.03	^{c v} 0.00017	^{c v} 0.00017
126. Toxaphene	8001352	0.73	0.0002	0.21	0.0002	^{a c} 0.00073	^{a c} 0.00075
Total Number of Criteria ^hr>		22	21	22	20	92	90

Footnotes to Table in Paragraph (b)(1):

^a Criteria revised to reflect the Agency q1* or RfD, as contained in the Integrated Risk Information System (IRIS) as of October 1, 1996. The fish tissue bioconcentration factor (BCF) from the 1980 documents was retained in each case.

Establishment of numeric criteria for priority toxic pollutants for the State of California.

§ 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California.

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952.933.4977

952.988.0141

40 C.F.R. § 131.38

Establishment of numeric criteria for priority toxic pollutants for the State of California.

§ 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California.

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Subpart D—Federally Promulgated Water Quality Standards