[Code of Federal Regulations]
[Title 40, Volume 21]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR131.36]
[Page 451-464]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 131_WATER QUALITY STANDARDS--Table of Contents
Subpart D_Federally Promulgated Water Quality Standards
Sec. 131.36 Toxics criteria for those states not complying with Clean Water Act section 303(c)(2)(B).
(a) Scope. This section is not a general promulgation of the section
304(a) criteria for priority toxic pollutants but is restricted to
specific pollutants in specific States.
(b)(1) EPA's Section 304(a) criteria for Priority Toxic Pollutants.
[[Page 452]]
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A B Freshwater C Saltwater D Human Health (10-6 risk for
----------------------------------------------------------------------------------------------------------------------- carcinogens) For consumption
of:
Criterion Criterion Criterion Criterion ---------------------------------
Maximum Conc. Continuous Maximum Conc. Continuous Water &
() Compound CAS Number \d\ ([micro]g/ Conc. \d\ \d\ ([micro]g/ Conc. \d\ Organisms Organisms Only
L) (B1) ([micro]g/L) L) (C1) ([micro]g/L) ([micro]g/L) ([micro]g/L)
(B2) (C2) (D1) (D2)
--------------------------------------------------------------------------------------------------------------------------------------------------------
1 Antimony...................... 7440360 ............... ............... ............... ............... 14 a 4300 a
2 Arsenic....................... 7440382 360 m 190 m 69 m 36 m 0.018 abc 0.14 abc
3 Beryllium..................... 7440417 ............... ............... ............... ............... n n
4 Cadmium....................... 7440439 3.7 e 1.0 e 42 m 9.3 m n n
5a Chromium (III)............... 16065831 550 e 180 e ............... ............... n n
b Chromium (VI)................. 18540299 15 m 10 m 1100 m 50 m n n
6 Copper........................ 7440508 17 e 11 e 2.4 m 2.4 m
7 Lead.......................... 7439921 65 e 2.5 e 210 m 8.1 m n n
8 Mercury....................... 7439976 2.1 m 0.012 ip 1.8 m 0.025 ip 0.14 0.15
9 Nickel........................ 7440020 1400 e 160 e 74 m 8.2 m 610 a 4600 a
10 Selenium..................... 7782492 20 p 5 p 290 m 71 m n n
11 Silver....................... 7440224 3.4 e ............... 1.9 m
12 Thallium..................... 7440280 ............... ............... ............... ............... 1.7 a 6.3 a
13 Zinc......................... 7440666 110 e 100 e 90 m 81 m
14 Cyanide...................... 57125 22 5.2 1 1 700 a 220000 aj
15 Asbestos..................... 1332214 ............... ............... ............... ............... 7,000,000
fibers/L k
16 2,3,7,8-TCDD (Dioxin)........ 1746016 ............... ............... ............... ............... 0.000000013 c 0.000000014 c
17 Acrolein..................... 107028 ............... ............... ............... ............... 320 780
18 Acrylonitrile................ 107131 ............... ............... ............... ............... 0.059 ac 0.66 ac
19 Benzene...................... 71432 ............... ............... ............... ............... 1.2 ac 71 ac
20 Bromoform.................... 75252 ............... ............... ............... ............... 4.3 ac 360 ac
21 Carbon Tetrachloride......... 56235 ............... ............... ............... ............... 0.25 ac 4.4 ac
22 Chlorobenzene................ 108907 ............... ............... ............... ............... 680 a 21000 aj
23 Chlorodibromomethane......... 124481 ............... ............... ............... ............... 0.41 ac 34 ac
24 Chloroethane................. 75003
25 2-Chloroethylvinyl Ether..... 110758
26 Chloroform................... 67663 ............... ............... ............... ............... 5.7 ac 470 ac
27 Dichlorobromomethane......... 75274 ............... ............... ............... ............... 0.27 ac 22 ac
28 1,1-Dichloroethane........... 75343
29 1,2-Dichloroethane........... 107062 ............... ............... ............... ............... 0.38 ac 99 ac
30 1,1-Dichloroethylene......... 75354 ............... ............... ............... ............... 0.057 ac 3.2 ac
31 1,2-Dichloropropane.......... 78875
32 1,3-Dichloropropylene........ 542756 ............... ............... ............... ............... 10 a 1700 a
33 Ethylbenzene................. 100414 ............... ............... ............... ............... 3100 a 29000 a
34 Methyl Bromide............... 74839 ............... ............... ............... ............... 48 a 4000 a
35 Methyl Chloride.............. 74873 ............... ............... ............... ............... n n
36 Methylene Chloride........... 75092 ............... ............... ............... ............... 4.7 ac 1600 ac
37 1,1,2,2-Tetrachloroethane.... 79345 ............... ............... ............... ............... 0.17 ac 11 ac
38 Tetrachloroethylene.......... 127184 ............... ............... ............... ............... 0.8 c 8.85 c
39 Toluene...................... 108883 ............... ............... ............... ............... 6800 a 200000 a
[[Page 453]]
40 1,2-Trans-Dichloroethylene... 156605
41 1,1,1-Trichloroethane........ 71556 ............... ............... ............... ............... n n
42 1,1,2-Trichloroethane........ 79005 ............... ............... ............... ............... 0.60 ac 42 ac
43 Trichloroethylene............ 79016 ............... ............... ............... ............... 2.7 c 81 c
44 Vinyl Chloride............... 75014 ............... ............... ............... ............... 2 c 525 c
45 2-Chlorophenol............... 95578
46 2,4-Dichlorophenol........... 120832 ............... ............... ............... ............... 93 a 790 aj
47 2,4-Dimethylphenol........... 105679
48 2-Methyl-4,6-Dinitrophenol... 534521 ............... ............... ............... ............... 13.4 765
49 2,4-Dinitrophenol............ 51285 ............... ............... ............... ............... 70 a 14000 a
50 2-Nitrophenol................ 88755
51 4-Nitrophenol................ 100027
52 3-Methyl-4-Chlorophenol...... 59507
53 Pentachlorophenol............ 87865 20 f 13 f 13 7.9 0.28 ac 8.2 acj
54 Phenol....................... 108952 ............... ............... ............... ............... 21000 a 4600000 aj
55 2,4,6-Trichlorophenol........ 88062 ............... ............... ............... ............... 2.1 ac 6.5 ac
56 Acenaphthene................. 83329
57 Acenaphthylene............... 208968
58 Anthracene................... 120127 ............... ............... ............... ............... 9600 a 110000 a
59 Benzidine.................... 92875 ............... ............... ............... ............... 0.00012 ac 0.00054 ac
60 Benzo(a)Anthracene........... 56553 ............... ............... ............... ............... 0.0028 c 0.031 c
61 Benzo(a)Pyrene............... 50328 ............... ............... ............... ............... 0.0028 c 0.031 c
62 Benzo(b)Fluoranthene......... 205992 ............... ............... ............... ............... 0.0028 c 0.031 c
63 Benzo(ghi)Perylene........... 191242
64 Benzo(k)Fluoranthene......... 207089 ............... ............... ............... ............... 0.0028 c 0.031 c
65 Bis(2-Chloroethoxy)Methane... 111911
66 Bis(2-Chloroethyl)Ether...... 111444 ............... ............... ............... ............... 0.031 ac 1.4 ac
67 Bis(2-Chloroisopropyl)Ether.. 108601 ............... ............... ............... ............... 1400 a 170000 a
68 Bis(2-Ethylhexyl)Phthalate... 117817 ............... ............... ............... ............... 1.8 ac 5.9 ac
69 4-Bromophenyl Phenyl Ether... 101553
70 Butylbenzyl Phthalate........ 85687
71 2-Chloronaphthalene.......... 91587
72 4-Chlorophenyl Phenyl Ether.. 7005723
73 Chrysene..................... 218019 ............... ............... ............... ............... 0.0028 c 0.031 c
74 Dibenzo(ah)Anthracene........ 53703 ............... ............... ............... ............... 0.0028 c 0.031 c
75 1,2-Dichlorobenzene.......... 95501 ............... ............... ............... ............... 2700 a 17000 a
76 1,3-Dichlorobenzene.......... 541731 ............... ............... ............... ............... 400 2600
77 1,4-Dichlorobenzene.......... 106467 ............... ............... ............... ............... 400 2600
78 3,3'-Dichlorobenzidine....... 91941 ............... ............... ............... ............... 0.04 ac 0.077 ac
79 Diethyl Phthalate............ 84662 ............... ............... ............... ............... 23000 a 120000 a
80 Dimethyl Phthalate........... 131113 ............... ............... ............... ............... 313000 2900000
81 Di-n-Butyl Phthalate......... 84742 ............... ............... ............... ............... 2700 a 12000 a
82 2,4-Dinitrotoluene........... 121142 ............... ............... ............... ............... 0.11 c 9.1 c
83 2,6-Dinitrotoluene........... 606202
84 Di-n-Octyl Phthalate......... 117840
85 1,2-Diphenylhydrazine........ 122667 ............... ............... ............... ............... 0.040 ac 0.54 ac
86 Fluoranthene................. 206440 ............... ............... ............... ............... 300 a 370 a
87 Fluorene..................... 86737 ............... ............... ............... ............... 1300 a 14000 a
88 Hexachlorobenzene............ 118741 ............... ............... ............... ............... 0.00075 ac 0.00077 ac
89 Hexachlorobutadiene.......... 87683 ............... ............... ............... ............... 0.44 ac 50 ac
[[Page 454]]
90 Hexachlorocyclopentadiene.... 77474 ............... ............... ............... ............... 240 a 17000 aj
91 Hexachloroethane............. 67721 ............... ............... ............... ............... 1.9 ac 8.9 ac
92 Indeno(1,2,3-cd)Pyrene....... 193395 ............... ............... ............... ............... 0.0028 c 0.031 c
93 Isophorone................... 78591 ............... ............... ............... ............... 8.4 ac 600 ac
94 Naphthalene.................. 91203
95 Nitrobenzene................. 98953 ............... ............... ............... ............... 17 a 1900 aj
96 N-Nitrosodimethylamine....... 62759 ............... ............... ............... ............... 0.00069 ac 8.1 ac
97 N-Nitrosodi-n-Propylamine.... 621647
98 N-Nitrosodiphenylamine....... 86306 ............... ............... ............... ............... 5.0 ac 16 ac
99 Phenanthrene................. 85018
100 Pyrene....................... 129000 ............... ............... ............... ............... 960 a 11000 a
101 1,2,4-Trichlorobenzene....... 120821
102 Aldrin....................... 309002 3 g ............... 1.3 g ............... 0.00013 ac 0.00014 ac
103 alpha-BHC.................... 319846 ............... ............... ............... ............... 0.0039 ac 0.013 ac
104 beta-BHC..................... 319857 ............... ............... ............... ............... 0.014 ac 0.046 ac
105 gamma-BHC.................... 58899 2 g 0.08 g 0.16 g ............... 0.019 c 0.063 c
106 delta-BHC.................... 319868
107 Chlordane.................... 57749 2.4 g 0.0043 g 0.09 g 0.004 g 0.00057 ac 0.00059 ac
108 4,4'-DDT..................... 50293 1.1 g 0.001 g 0.13 g 0.001 g 0.00059 ac 0.00059 ac
109 4,4'-DDE..................... 72559 ............... ............... ............... ............... 0.00059 ac 0.00059 ac
110 4,4'-DDD..................... 72548 ............... ............... ............... ............... 0.00083 ac 0.00084 ac
111 Dieldrin..................... 60571 2.5 g 0.0019 g 0.71 g 0.0019 g 0.00014 ac 0.00014 ac
112 alpha-Endosulfan............. 959988 0.22 g 0.056 g 0.034 g 0.0087 g 0.93 a 2.0 a
113 beta-Endosulfan.............. 33213659 0.22 g 0.056 g 0.034 g 0.0087 g 0.93 a 2.0 a
114 Endosulfan Sulfate........... 1031078 ............... ............... ............... ............... 0.93 a 2.0 a
115 Endrin....................... 72208 0.18 g 0.0023 g 0.037 g 0.0023 g 0.76 a 0.81 aj
116 Endrin Aldehyde.............. 7421934 ............... ............... ............... ............... 0.76 a 0.81 aj
117 Heptachlor................... 76448 0.52 g 0.0038 g 0.053 g 0.0036 g 0.00021 ac 0.00021 ac
118 Heptachlor Epoxide........... 1024573 0.52 g 0.0038 g 0.053 g 0.0036 g 0.00010 ac 0.00011 ac
119 PCB-1242..................... 53469219 ............... 0.014 g ............... 0.03 g
120 PCB-1254..................... 11097691 ............... 0.014 g ............... 0.03 g
121 PCB-1221..................... 11104282 ............... 0.014 g ............... 0.03 g
122 PCB-1232..................... 11141165 ............... 0.014 g ............... 0.03 g
123 PCB-1248..................... 12672296 ............... 0.014 g ............... 0.03 g
124 PCB-1260..................... 11096825 ............... 0.014 g ............... 0.03 g
125a PCB-1016.................... 12674112 ............... 0.014 g ............... 0.03 g
125b Polychlorinated biphenyls ............... ............... ............... ............... ............... 0.00017 q 0.00017 q
(PCBs)..........................
126 Toxaphene.................... 8001352 0.73 0.0002 0.21 0.0002 0.00073 ac 0.00075 ac
Total Number of Criteria (h) ............... 24 29 23 27 85 84
=...........................
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[[Page 455]]
Footnotes
a. Criteria revised to reflect current agency q1* or RfD,
as contained in the Integrated Risk Information System (IRIS). The fish
tissue bioconcentration factor (BCF) from the 1980 criteria documents
was retained in all cases.
b. The criteria refers to the inorganic form only.
c. Criteria in the matrix based on carcinogenicity (10-6
risk). For a risk level of 10-5, move the decimal point in
the matrix value one place to the right.
d. Criteria Maximum Concentration (CMC) = the highest concentration
of a pollutant to which aquatic life can be exposed for a short period
of time (1-hour average) without deleterious effects. Criteria
Continuous Concentration (CCC) = the highest concentration of a
pollutant to which aquatic life can be exposed for an extended period of
time (4 days) without deleterious effects. [micro]g/L = micrograms per
liter.
e. Freshwater aquatic life criteria for these metals are expressed
as a function of total hardness (mg/L as CaCO3), the
pollutant's water effect ratio (WER) as defined in Sec. 131.36(c) and
multiplied by an appropriate dissolved conversion factor as defined in
Sec. 131.36(b)(2). For comparative purposes, the values displayed in
this matrix are shown as dissolved metal and correspond to a total
hardness of 100 mg/L and a water effect ratio of 1.0.
f. Freshwater aquatic life criteria for pentachlorophenol are
expressed as a function of pH, and are calculated as follows. Values
displayed above in the matrix correspond to a pH of 7.8.
CMC = exp(1.005(pH)-4.830)
CCC = exp(1.005(pH)-5.290)
g. Aquatic life criteria for these compounds were issued in 1980
utilizing the 1980 Guidelines for criteria development. The acute values
shown are final acute values (FAV) which by the 1980 Guidelines are
instantaneous values as contrasted with a CMC which is a one-hour
average.
h. These totals simply sum the criteria in each column. For aquatic
life, there are 31 priority toxic pollutants with some type of
freshwater or saltwater, acute or chronic criteria. For human health,
there are 85 priority toxic pollutants with either ``water + fish'' or
``fish only'' criteria. Note that these totals count chromium as one
pollutant even though EPA has developed criteria based on two valence
states. In the matrix, EPA has assigned numbers 5a and 5b to the
criteria for chromium to reflect the fact that the list of 126 priority
toxic pollutants includes only a single listing for chromium.
i. If the CCC for total mercury exceeds 0.012 [micro]g/l more than
once in a 3-year period in the ambient water, the edible portion of
aquatic species of concern must be analyzed to determine whether the
concentration of methyl mercury exceeds the FDA action level (1.0 mg/
kg). If the FDA action level is exceeded, the State must notify the
appropriate EPA Regional Administrator, initiate a revision of its
mercury criterion in its water quality standards so as to protect
designated uses, and take other appropriate action such as issuance of a
fish consumption advisory for the affected area.
j. No criteria for protection of human health from consumption of
aquatic organisms (excluding water) was presented in the 1980 criteria
document or in the 1986 Quality Criteria for Water. Nevertheless,
sufficient information was presented in the 1980 document to allow a
calculation of a criterion, even though the results of such a
calculation were not shown in the document.
k. The criterion for asbestos is the MCL (56 FR 3526, January 30,
1991).
l. [Reserved: This letter not used as a footnote.]
m. Criteria for these metals are expressed as a function of the
water effect ratio, WER, as defined in 40 CFR 131.36(c).
CMC = column B1 or C1 value x WER
CCC = column B2 or C2 value x WER
n. EPA is not promulgating human health criteria for this
contaminant. However, permit authorities should address this contaminant
in NPDES permit actions using the State's existing narrative criteria
for toxics.
o. [Reserved: This letter not used as a footnote.]
p. Criterion expressed as total recoverable.
q. This criterion applies to total PCBs (e.g., the sum of all
congener or isomer or homolog or Aroclor analyses).
General Notes
1. This chart lists all of EPA's priority toxic pollutants whether
or not criteria recommendations are available. Blank spaces indicate the
absence of criteria recommendations. Because of variations in chemical
nomenclature systems, this listing of toxic pollutants does not
duplicate the listing in Appendix A of 40 CFR Part 423. EPA has added
the Chemical Abstracts Service (CAS) registry numbers, which provide a
unique identification for each chemical.
2. The following chemicals have organoleptic based criteria
recommendations that are not included on this chart (for reasons which
are discussed in the preamble): copper, zinc, chlorobenzene, 2-
chlorophenol, 2,4-dichlorophenol, acenaphthene, 2,4-dimethylphenol, 3-
methyl-4-chlorophenol, hexachlorocyclopentadiene, pentachlorophenol,
phenol.
3. For purposes of this rulemaking, freshwater criteria and
saltwater criteria apply as specified in 40 CFR 131.36(c).
Note to paragraph (b)(1): On April 14, 1995, the Environmental
Protection Agency
[[Page 456]]
issued a stay of certain criteria in paragraph (b)(1) of this section as
follows: the criteria in columns B and C for arsenic, cadmium, chromium
(VI), copper, lead, nickel, silver, and zinc; the criteria in B1 and C1
for mercury; the criteria in column B for chromium (III); and the
criteria in column C for selenium. The stay remains in effect until
further notice.
(2) Factors for Calculating Hardness-Dependent, Freshwater Metals
Criteria
CMC=WER exp { mA[ln(hardness)]+bA{time} x Acute
Conversion Factor
CCC=WER exp { mC[ln(hardness)]+bC{time} x Chronic
Conversion Factor
Final CMC and CCC values should be rounded to two significant figures.
----------------------------------------------------------------------------------------------------------------
Freshwater conversion
factors
Metal mA bA mC bC -------------------------
Acute Chronic
----------------------------------------------------------------------------------------------------------------
Cadmium........................... 1.128 -3.828 0.7852 -3.490 \a\ 0.944 \a\ 0.909
Chromium (III).................... 0.8190 3.688 0.8190 1.561 0.316 0.860
Copper............................ 0.9422 -1.464 0.8545 -1.465 0.960 0.960
Lead.............................. 1.273 -1.460 1.273 -4.705 \a\ 0.791 \a\ 0.791
Nickel............................ 0.8460 3.3612 0.8460 1.1645 0.998 0.997
Silver............................ 1.72 -6.52 \b\ N/A \b\ N/A 0.85 \b\ N/A
Zinc.............................. 0.8473 0.8604 0.8473 0.7614 0.978 0.986
----------------------------------------------------------------------------------------------------------------
Note to table: The term ``exp'' represents the base e exponential function.
Footnotes to table:
\a\ The freshwater conversion factors (CF) for cadmium and lead are hardness-dependent and can be calculated for
any hardness [see limitations in Sec. 131.36(c)(4)] using the following equations:
Cadmium
Acute: CF=1.136672--[(ln hardness)(0.041838)]
Chronic: CF=1.101672--[(ln hardness)(0.041838)]
Lead (Acute and Chronic): CF = 1.46203--[(ln hardness)(0.145712)]
\b\ No chronic criteria are available for silver.
(c) Applicability. (1) The criteria in paragraph (b) of this section
apply to the States' designated uses cited in paragraph (d) of this
section and supersede any criteria adopted by the State, except when
State regulations contain criteria which are more stringent for a
particular use in which case the State's criteria will continue to
apply.
(2) The criteria established in this section are subject to the
State's general rules of applicability in the same way and to the same
extent as are the other numeric toxics criteria when applied to the same
use classifications including mixing zones, and low flow values below
which numeric standards can be exceeded in flowing fresh waters.
(i) For all waters with mixing zone regulations or implementation
procedures, the criteria apply at the appropriate locations within or at
the boundary of the mixing zones; otherwise the criteria apply
throughout the waterbody including at the end of any discharge pipe,
canal or other discharge point.
(ii) A State shall not use a low flow value below which numeric
standards can be exceeded that is less stringent than the following for
waters suitable for the establishment of low flow return frequencies
(i.e., streams and rivers):
Aquatic Life
Acute criteria (CMC) 1 Q 10 or 1 B 3
Chronic criteria (CCC) 7 Q 10 or 4 B 3
Human Health
Non-carcinogens 30 Q 5
Carcinogens Harmonic mean flow
Where:
CMC--criteria maximum concentration--the water quality criteria to
protect against acute effects in aquatic life and is the highest
instream concentration of a priority toxic pollutant consisting of a
one-hour average not to be exceeded more than once every three years on
the average;
CCC--criteria continuous concentration--the water quality criteria to
protect against chronic effects in aquatic life is the highest instream
concentration of a priority toxic pollutant consisting of a 4-day
average not to be exceeded more than once every three years on the
average;
1 Q 10 is the lowest one day flow with an average recurrence frequency
of once in 10 years determined hydrologically;
1 B 3 is biologically based and indicates an allowable exceedence of
once every 3 years. It is determined by EPA's computerized method (DFLOW
model);
7 Q 10 is the lowest average 7 consecutive day low flow with an average
recurrence frequency of once in 10 years determined hydrologically;
4 B 3 is biologically based and indicates an allowable exceedence for 4
consecutive days once every 3 years. It is determined by EPA's
computerized method (DFLOW model);
30 Q 5 is the lowest average 30 consecutive day low flow with an average
recurrence frequency of once in 5 years determined hydrologically; and
the harmonic mean
[[Page 457]]
flow is a long term mean flow value calculated by dividing the number of
daily flows analyzed by the sum of the reciprocals of those daily flows.
(iii) If a State does not have such a low flow value for numeric
standards compliance, then none shall apply and the criteria included in
paragraph (d) of this section herein apply at all flows.
(3) The aquatic life criteria in the matrix in paragraph (b) of this
section apply as follows:
(i) For waters in which the salinity is equal to or less than 1 part
per thousand 95% or more of the time, the applicable criteria are the
freshwater criteria in Column B;
(ii) For waters in which the salinity is equal to or greater than 10
parts per thousand 95% or more of the time, the applicable criteria are
the saltwater criteria in Column C; and
(iii) For waters in which the salinity is between 1 and 10 parts per
thousand as defined in paragraphs (c)(3) (i) and (ii) of this section,
the applicable criteria are the more stringent of the freshwater or
saltwater criteria. However, the Regional Administrator may approve the
use of the alternative freshwater or saltwater criteria if
scientifically defensible information and data demonstrate that on a
site-specific basis the biology of the waterbody is dominated by
freshwater aquatic life and that freshwater criteria are more
appropriate; or conversely, the biology of the waterbody is dominated by
saltwater aquatic life and that saltwater criteria are more appropriate.
(4) Application of metals criteria. (i) For purposes of calculating
freshwater aquatic life criteria for metals from the equations in
paragraph (b)(2) of this section, the minimum hardness allowed for use
in those equations shall not be less than 25 mg/l, as calcium carbonate,
even if the actual ambient hardness is less than 25 mg/l as calcium
carbonate. The maximum hardness value for use in those equations shall
not exceed 400 mg/l as calcium carbonate, even if the actual ambient
hardness is greater than 400 mg/l as calcium carbonate. The same
provisions apply for calculating the metals criteria for the comparisons
provided for in paragraph (c)(3)(iii) of this section.
(ii) The hardness values used shall be consistent with the design
discharge conditions established in paragraph (c)(2) of this section for
flows and mixing zones.
(iii) Except where otherwise noted, the criteria for metals
(compounds 2, 4- 11, and 13, in
paragraph (b) of this section) are expressed as dissolved metal. For
purposes of calculating aquatic life criteria for metals from the
equations in footnote m. in the criteria matrix in paragraph (b)(1) of
this section and the equations in paragraphs (b)(2) of this section, the
water-effect ratio is computed as a specific pollutant's acute or
chronic toxicity values measured in water from the site covered by the
standard, divided by the respective acute or chronic toxicity value in
laboratory dilution water.
(d) Criteria for Specific Jurisdictions--(1) Rhode Island, EPA
Region 1. (i) All waters assigned to the following use classifications
in the Water Quality Regulations for Water Pollution Control adopted
under Chapters 46-12, 42-17.1, and 42-35 of the General Laws of Rhode
Island are subject to the criteria in paragraph (d)(1)(ii) of this
section, without exception:
6.21 Freshwater 6.22 Saltwater:
Class A.................................. Class SA
Class B.................................. Class SB
Class C.................................. Class SC
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(1)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
Class A................................... These classifications are
Class B waters where water supply use is assigned the criteria in
designated. Column D1--2, 68
Class B waters where water supply use is Each of these
not designated. classifications is assigned
Class C;.................................. the criteria in: Column D2--
Class SA;................................. 2, 68
Class SB;.................................
Class SC..................................
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the
10-5 risk level, consistent with the State policy. To
determine appropriate value for carcinogens, see footnote c in the
criteria matrix in paragraph (b)(1) of this section.
[[Page 458]]
(2) Vermont, EPA Region 1. (i) All waters assigned to the following
use classifications in the Vermont Water Quality Standards adopted under
the authority of the Vermont Water Pollution Control Act (10 V.S.A.,
Chapter 47) are subject to the criteria in paragraph (d)(2)(ii) of this
section, without exception:
Class A
Class B
Class C
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(2)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
1. Classes A1, A2, B1, B2, B3.......... These classification are
assigned the criterion in:
Column B2--105.
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
proposed 10-6 risk level.
(3) New Jersey, EPA Region 2. (i) All waters assigned to the
following use classifications in the New Jersey Administrative Code
(N.J.A.C.) 7:9-4.1 et seq., Surface Water Quality Standards, are subject
to the criteria in paragraph (d)(3)(ii) of this section, without
exception.
N.J.A.C. 7:9-4.12(b): Class PL
N.J.A.C. 7:9-4.12(c): Class FW2
N.J.A.C. 7:9-4.12(d): Class SE1
N.J.A.C. 7:9-4.12(e): Class SE2
N.J.A.C. 7:9-4.12(f): Class SE3
N.J.A.C. 7:9-4.12(g): Class SC
N.J.A.C. 7:9-4.13(a): Delaware River Zones 1C, 1D, and 1E
N.J.A.C. 7:9-4.13(b): Delaware River Zone 2
N.J.A.C. 7:9-4.13(c): Delaware River Zone 3
N.J.A.C. 7:9-4.13(d): Delaware River Zone 4
N.J.A.C. 7:9-4.13(e): Delaware River Zone 5
N.J.A.C. 7:9-4.13(f): Delaware River Zone 6
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(3)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
1. Freshwater Pinelands, FW2........... These classifications are each
assigned the criteria in:
i. Column B1--2, 4,
5a, 5b, 6-11, 13.
ii. Column B2--2, 4,
5a, 5b, 6-10, 13.
iii. Column D1--125b
at a 10-6 risk level.
iv. Column D2--125b at
a 10-6 risk level.
v. Column D2--23, 30,
37, 42, 87, 89, 93 and 105 at
a 10-5 risk level.
2. PL (Saline Water Pinelands), SE1, These classifications are each
SE2, SE3, SC, Delaware Bay Zone 6. assigned the criteria in:
i. Column C1--2, 4,
5b, 6-11, 13.
ii. Column C2--2, 4,
5b, 6-10, 13.
iii. Column D1--125b
at a 10-6 risk level.
iv. Column D2--125b at
a 10-6 risk level.
v. Column D2--23, 30,
37, 42, 87, 89, 93 and 105 at
a 10-5 risk level.
3. Delaware River Zones 1C, 1D, 1E, 2, i. Column B1--none.
3, 4, and 5.
ii. Column B2--none.
iii. Column D1--none.
iv. Column D2--none.
4. Delaware River Zones 3, 4, and 5.... These classifications are each
assigned the criteria in:
i. Column C1--none.
ii. Column C2--none.
iii. Column D2--none.
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
proposed 10-6 risk level for EPA rated Class A,
B1, and B2 carcinogens; EPA rated Class C
carcinogens shall be applied at 10-5 risk level. To determine
appropriate value for carcinogens, see footnote c. in the matrix in
paragraph (b)(1) of this section.
(4) Puerto Rico, EPA Region 2. (i) All waters assigned to the
following use classifications in the Puerto Rico
[[Page 459]]
Water Quality Standards (promulgated by Resolution Number R-83-5-2) are
subject to the criteria in paragraph (d)(4)(ii) of this section, without
exception.
Article 2.2.2--Class SB
Article 2.2.3--Class SC
Article 2.2.4--Class SD
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(4)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
Class SD............................... Column B1-- 118.
Column B2--s 8, 105,
115, 118, 119, 120, 121, 122,
123,124, 125a, 125b.
Column D1--s 12, 16,
27, 60, 61, 62, 64, 73, 74,
92, 93, 103, 104, 114, 116,
118, 119, 120, 121, 122, 123,
124, 125a, 125b.
Class SB, Class SC..................... Column C1--s 5b, 112,
113, 118.
Column C2--s 5b, 8,
112, 113, 118, 119, 120, 121,
122, 123, 124, 125a, 125b.
Column D2--s 12, 16,
27, 60, 61, 62, 64, 73, 74,
87, 92, 93, 103, 104, 114,
116, 118, 119, 120, 121, 122,
123, 124, 125a, 125b.
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
proposed 10-5 risk level. To determine appropriate value for
carcinogens, see footnote c, in the criteria matrix in paragraph (b)(1)
of this section.
(5) District of Columbia, EPA Region 3. (i) All waters assigned to
the following use classifications in chapter 11 Title 21 DCMR, Water
Quality Standards of the District of Columbia are subject to the
criteria in paragraph (d)(5)(ii) of this section, without exception:
1101.2 Class C waters
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classification identified in paragraph
(d)(5)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
1. Class C............................. This classification is assigned
the additional criteria in:
Column B2; 10, 118,
126.
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
adopted 10-6 risk level.
(6) Florida, EPA Region 4. (i) All waters assigned to the following
use classifications in Chapter 17-301 of the Florida Administrative Code
(i.e., identified in Section 17-302.600) are subject to the criteria in
paragraph (d)(6)(ii) of this section, without exception:
Class I
Class II
Class III
(ii) The following criteria from the matrix paragraph (b)(1) of this
section apply to the use classifications identified in paragraph
(d)(6)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
Class I................................ This classification is assigned
the criteria in:
Column D1--16
Class II............................... This classification is assigned
Class III (marine)..................... the criteria in:
Column D2--16
Class III (freshwater)................. This classification is assigned
the criteria in:
Column D2--16
------------------------------------------------------------------------
[[Page 460]]
(iii) The human health criteria shall be applied at the State-
adopted 10-6 risk level.
(7)-(8) [Reserved]
(9) Kansas, EPA Region 7. (i) All waters assigned to the following
use classification in the Kansas Department of Health and Environment
regulations, K.A.R. 28-16-28b through K.A.R. 28-16-28f, are subject to
the criteria in paragraph (d)(9)(ii) of this section, without exception.
Section (2)(A)--Special Aquatic Life Use Waters
Section (2)(B)--Expected Aquatic Life Use Waters
Section (2)(C)--Restricted Aquatic Life Use Waters
Section (3)--Domestic Water Supply.
Section (4)--Food Procurement Use.
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(9)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
1. Sections (2)(A), (2)(B), (2)(C), (4) These classifications are each
assigned criteria as follows:
i. Column B1, 2.
ii. Column D2, 12, 21,
29, 39, 46, 68, 79, 81, 86,
93, 104, 114, 118.
2. Section (3)......................... This classification is assigned
all criteria in:
Column D1, all except 1, 9, 12, 14, 15, 17, 22,
33, 36, 39, 44, 75, 77, 79,
90, 112, 113, and 115.
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
adopted 10-6 risk level.
(10) California, EPA Region 9. (i) All waters assigned any aquatic
life or human health use classifications in the Water Quality Control
Plans for the various Basins of the State (``Basin Plans''), as amended,
adopted by the California State Water Resources Control Board
(``SWRCB''), except for ocean waters covered by the Water Quality
Control Plan for Ocean Waters of California (``Ocean Plan'') adopted by
the SWRCB with resolution Number 90-27 on March 22, 1990, are subject to
the criteria in paragraph (d)(10)(ii) of this section, without
exception. These criteria amend the portions of the existing State
standards contained in the Basin Plans. More particularly these criteria
amend water quality criteria contained in the Basin Plan Chapters
specifying water quality objectives (the State equivalent of federal
water quality criteria) for the toxic pollutants identified in paragraph
(d)(10)(ii) of this section. Although the State has adopted several use
designations for each of these waters, for purposes of this action, the
specific standards to be applied in paragraph (d)(10)(ii) of this
section are based on the presence in all waters of some aquatic life
designation and the presence or absence of the MUN use designation
(Municipal and domestic supply). (See Basin Plans for more detailed use
definitions.)
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the water and use classifications defined in
paragraph (d)(10)(i) of this section and identified below:
Applicable
Water and use classification criteria
Waters of the State defined as bays or estuaries These waters are
except the Sacramento-San Joaquin Delta and San assigned the
Francisco Bay criteria in:
Column B1--
pollutants 5a
and 14
Column B2--
pollutants 5a
and 14
Column C1--
pollutant 14
Column C2--
pollutant 14
Column D2--
pollutants 1,
12, 17, 18,
21, 22, 29,
30, 32, 33,
37, 38, 42-
44, 46, 48,
49, 54, 59,
66, 67, 68,
78-82, 85,
89, 90, 91,
93, 95, 96,
98
[[Page 461]]
Waters of the Sacramento--San Joaquin Delta and These waters are
waters of the State defined as inland (i.e., all assigned the
surface waters of the State not bays or estuaries or criteria in:
ocean) that include a MUN use designation Column B1--
pollutants 5a
and 14
Column B2--
pollutants 5a
and 14
Column D1--
pollutants 1,
12, 15, 17, 18,
21, 22, 29, 30,
32, 33, 37, 38,
42-48, 49, 59,
66, 67, 68, 78-
82, 85, 89, 90,
91, 93, 95, 96,
98
Waters of the State defined as inland without an MUN These waters are
use designation assigned the
criteria in:
Column B1--
pollutants 5a
and 14
Column B2--
pollutants 5a
and 14
Column D2--
pollutants 1,
12, 17, 18,
21, 22, 29,
30, 32, 33,
37, 38, 42-
44, 46, 48,
49, 54, 59,
66, 67, 68,
78-82, 85,
89, 90, 91,
93, 95, 96,
98
Waters of the San Joaquin River from the mouth of the In addition to
Merced River to Vernalis the criteria
assigned to
these waters
elsewhere in
this rule, these
waters are
assigned the
criteria in:
Column B2--
pollutant 10
Waters of Salt Slough, Mud Slough (north) and the San In addition to
Joaquin River, Sack Dam to the mouth of the Merced the criteria
River assigned to
these waters
elsewhere in
this rule, these
waters are
assigned the
criteria in:
Column B1--
pollutant 10
Column B2--
pollutant 10
Waters of San Francisco Bay upstream to and including These waters are
Suisun Bay and the Sacramento-San Joaquin Delta assigned the
criteria in:
Column B1--
pollutants
5a, 10* and
14
Column B2--
pollutants
5a, 10* and
14
Column C1--
pollutant 14
Column C2--
pollutant 14
Column D2--
pollutants 1,
12, 17, 18,
21, 22, 29,
30, 32, 33,
37, 38, 42-
44, 46, 48,
49, 54, 59,
66, 67, 68,
78-82, 85,
89, 90, 91,
93, 95, 96,
98
All inland waters of the United States or enclosed These waters are
bays and estuaries that are waters of the United assigned the
States that include an MUN use designation and that criteria for
the State has either excluded or partially excluded pollutants for
from coverage under its Water Quality Control Plan which the State
for Inland Surface Waters of California, Tables 1 does not apply
and 2, or its Water Quality Control Plan for Table 1 or 2
Enclosed Bays and Estuaries of California, Tables 1 standards. These
and 2, or has deferred applicability of those criteria are:
tables. (Category (a), (b), and (c) waters described Column B1--all
on page 6 of Water Quality Control Plan for Inland pollutants
Surface Waters of California or page 6 of its Water Column B2--all
Quality Control Plan for Enclosed Bays and Estuaries pollutants
of California.) Column D1--all
pollutants
except 2
[[Page 462]]
All inland waters of the United States that do not These waters are
include an MUN use designation and that the State assigned the
has either excluded or partially excluded from criteria for
coverage under its Water Quality Control Plan for pollutants for
Inland Surface Waters of California, Tables 1 and 2, which the State
or has deferred applicability of these tables. does not apply
(Category (a), (b), and (c) waters described on page Table 1 or 2
6 of Water Quality Control Plan for Inland Surface standards. These
Waters of California.) criteria are:
Column B1--all
pollutants
Column B2--all
pollutants
Column D2--all
pollutants
except 2
All enclosed bays and estuaries that are waters of These waters are
the United States that do not include an MUN assigned the
designation and that the State has either excluded criteria for
or partially excluded from coverage under its Water pollutants for
Quality Control Plan for Inland Surface Waters of which the State
California, Tables 1 and 2, or its Water Quality does not apply
Control Plan for Enclosed Bays and Estuaries of Table 1 or 2
California, Tables 1 and 2, or has deferred standards. These
applicability of those tables. (Category (a), (b), criteria are:
and (c) waters described on page 6 of Water Quality Column B1--all
Control Plan for Inland Surface Waters of California pollutants
or page 6 of its Water Quality Control Plan for Column B2--all
Enclosed Bays and Estuaries of California.) pollutants
Column C1--all
pollutants
Column C2--all
pollutants
Column D2--all
pollutants
except 2
*The fresh water selenium criteria are included for the San Francisco
Bay estuary because high levels of bioaccumulation of selenium in the
estuary indicate that the salt water criteria are underprotective for
San Francisco Bay.
(iii) The human health criteria shall be applied at the State-
adopted 10-6 risk level.
(11) Nevada, EPA Region 9. (i) All waters assigned the use
classifications in Chapter 445 of the Nevada Administrative Code (NAC),
Nevada Water Pollution Control Regulations, which are referred to in
paragraph (d)(11)(ii) of this section, are subject to the criteria in
paragraph (d)(11)(ii) of this section, without exception. These criteria
amend the existing State standards contained in the Nevada Water
Pollution Control Regulations. More particularly, these criteria amend
or supplement the table of numeric standards in NAC 445.1339 for the
toxic pollutants identified in paragraph (d)(11)(ii) of this section.
(ii) The following criteria from matrix in paragraph (b)(1) of this
section apply to the waters defined in paragraph (d)(11)(i) of this
section and identified below:
Water and use classification Applicable criteria
Waters that the State has included These waters are assigned the
in NAC 445.1339 where Municipal or criteria in:
domestic supply is a designated Column B1--pollutant 118
use Column B2--pollutant 118
Column D1--pollutants 15,
16, 18, 19, 20, 21, 23, 26, 27,
29, 30, 34, 37, 38, 42, 43, 55, 58-
62, 64, 66, 73, 74, 78, 82, 85, 87-
89, 91, 92, 96, 98, 100, 103, 104,
105, 114, 116, 117, 118
Waters that the State has included These waters are assigned the
in NAC 445.1339 where Municipal or criteria in:
domestic supply is not a Column B1--pollutant 118
designated use Column B2--pollutant 118
Column D2--all pollutants except
2.
(iii) The human health criteria shall be applied at the
10-5 risk level, consistent with State policy. To determine
appropriate value for carcinogens, see footnote c in the criteria matrix
in paragraph (b)(1) of this section.
(12) Alaska, EPA Region 10. (i) All waters assigned to the following
use classifications in the Alaska Administrative Code (AAC), Chapter 18
(i.e., identified in 18 AAC 70.020) are subject to the criteria in
paragraph (d)(12)(ii) of this section, without exception:
[[Page 463]]
70.020.(1) (A) Fresh Water
70.020.(1) (A) Water Supply
(i) Drinking, culinary, and food processing,
(iii) Aquaculture;
70.020.(1) (B) Water Recreation
(i) Contact recreation,
(ii) Secondary recreation;
70.020.(1) (C) Growth and propagation of fish, shellfish, other aquatic
life, and wildlife
70.020.(2) (A) Marine Water
70.020.(2) (A) Water Supply
(i) Aquaculture,
70.020.(2) (B) Water Recreation
(i) contact recreation,
(ii) secondary recreation;
70.020.(2) (C) Growth and propagation of fish, shellfish, other aquatic
life, and wildlife;
70.020.(2) (D) Harvesting for consumption of raw mollusks or other raw
aquatic life.
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(12)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
(1)(A)(i).............................. Column D1--s 16, 18-
21, 23, 26, 27, 29, 30, 32,
37, 38, 42-44, 53, 55, 59-62,
64, 66, 68, 73, 74, 78, 82,
85, 88, 89, 91-93, 96, 98, 102-
105, 107-111, 117-126.
(1)(A)(iii)............................ Column D2--s 14, 16,
18-21, 22, 23, 26, 27, 29, 30,
32, 37, 38, 42-44, 46, 53, 54,
55, 59-62, 64, 66, 68, 73, 74,
78, 82, 85, 88-93, 95, 96, 98,
102-105, 107-111, 115-126.
(1)(B)(i), (1)(B)(ii), (1)(C).......... Column D2--s 14, 16,
18-21, 22, 23, 26, 27, 29, 30,
32, 37, 38, 42-44, 46, 53, 54,
55, 59-62, 64, 66, 68, 73, 74,
78, 82, 85, 88-93, 95, 96, 98,
102-105, 107-111, 115-126.
(2)(A)(i), (2)(B)(i), and (2)(B)ii, Column D2--s 14, 16,
(2)(C), (2)(D). 18-21, 22, 23, 26, 27, 29, 30,
32, 37, 38, 42-44, 46, 53, 54,
55, 59-62, 64, 66, 68, 73, 74,
78, 82, 85, 88-93, 95, 96, 98,
102-105, 107-111, 115-126.
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
proposed risk level of 10-5. To determine appropriate value
for carcinogens, see footnote c in the criteria matrix in paragraph
(b)(1) of this section.
(13) [Reserved]
(14) Washington, EPA Region 10. (i) All waters assigned to the
following use classifications in the Washington Administrative Code
(WAC), Chapter 173-201 (i.e., identified in WAC 173-201-045) are subject
to the criteria in paragraph (d)(14)(ii) of this section, without
exception:
173-201-045
Fish and Shellfish
Fish
Water Supply (domestic)
Recreation
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(14)(i) of this section:
------------------------------------------------------------------------
Use classification Applicable criteria
------------------------------------------------------------------------
Fish and Shellfish;.................... These classifications are
Fish................................... assigned the criteria in:
Column C2--6, 14
Column D2--all
Water Supply (domestic)................ These classifications are
assigned the criteria in:
Column D1--all
Recreation............................. This classification is assigned
the criteria in:
Column D2--Marine waters and
freshwaters not protected
for domestic water supply
------------------------------------------------------------------------
[[Page 464]]
(iii) The human health criteria shall be applied at the State
proposed risk level of 10-6.
[57 FR 60910, Dec. 22, 1992; 58 FR 31177, June 1, 1993, as amended at 58
FR 34499, June 25, 1993; 58 FR 36142, July 6, 1993; 60 FR 22229, 22235,
May 4, 1995; 60 FR 44120, Aug. 24, 1995; 61 FR 60617, Nov. 29, 1996; 62
FR 52927, Oct. 9, 1997; 62 FR 53214, Oct. 10, 1997; 63 FR 10144, Mar. 2,
1998; 64 FR 61193, Nov. 9, 1999; 65 FR 19661, Apr. 12, 2000; 67 FR
68041, Nov. 8, 2002; 67 FR 71846, Dec. 3, 2002; 69 FR 63082, Oct. 29,
2004]