[Code of Federal Regulations]
[Title 40, Volume 18]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR131.36]
[Page 396-411]
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 397]]
--------------------------------------------------------------------------------------------------------------------------------------------------------
A B Freshwater C Saltwater D Human Health (10-6 risk for
----------------------------------------------------------------------------------------------------------------------- carcinogens) For consumption
of:
Criterion Criterion Criterion Criterion ---------------------------------
() Compound CAS Number Maximum Conc. Continuous Maximum Conc. Continuous Water &
d ([mu]g/L) Conc. d ([mu]g/ d ([mu]g/L) Conc. d ([mu]g/ Organisms Organisms Only
L) L) ([mu]g/L) ([mu]g/L)
............... B1 B2 C1 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
[[Page 398]]
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
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
[[Page 399]]
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
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 ............... ............... ............... ............... ............... ...............
[[Page 400]]
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 401]]
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. [mu]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 [mu]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 402]]
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 403]]
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[hyphen]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 404]]
(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
------------------------------------------------------------------------
Class A................................... This classification is
Class B waters where water supply use is assigned criteria in:
designated. Column B2--105
Class B waters where water supply use is These classifications are
not designated Class C. assigned all the criteria
in:
Column B2--105
Column D2--2
------------------------------------------------------------------------
(iii) The human health criteria shall be applied at the State-
proposed 10[hyphen]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
PL (Freshwater Pinelands), FW2 These classifications are
assigned the criteria in:
Column B1--all except 102, 105, 107, 108, 111,
112, 113, 115, 117, and 118.
Column B2--all except 105, 107, 108, 111, 112,
113, 115, 117, 118, 119, 120,
121, 122, 123, 124, and 125a.
Column D1--all at a 10-6 risk
level except 23, 30,
37, 38, 42, 68, 89, 91, 93,
104, 105; 23, 30,
37, 38, 42, 68, 89, 91, 93,
104, 105, at a 10-5 risk
level.
Column D2--all at a 10-6 risk
level except 23, 30,
37, 38, 42, 68, 89, 91, 93,
104, 105; 23, 30,
37, 38, 42, 68, 89, 91, 93,
104, 105, at a 10-5 risk
level.
PL (Saline Water Pinelands), SE1, SE2, These classifications are each
SE3, SC assigned the criteria in:
Column C1--all except
102, 105, 107,
108, 111, 112, 113, 115,
117, and 118.
Column C2--all except 105, 107, 108, 111, 112,
113, 115, 117, 118, 119, 120,
121, 122, 123, 124, and 125a.
Column D2--all at a 10-6
risk level except 23, 30, 37, 38, 42, 68,
89, 91, 93, 104, 105;
23, 30, 37, 38,
42, 68, 89, 91, 93, 104,
105, at a 10-5 risk level.
Delaware River zones 1C, 1D, 1E, 2, 3, These classifications are each
4, 5 and Delaware Bay zone 6 assigned the criteria in:
Column B1--all.
Column B2--all.
Column D1--all at a 10-6
risk level except 23, 30, 37, 38, 42, 68,
89, 91, 93, 104, 105;
23, 30, 37, 38,
42, 68, 89, 91, 93, 104,
105, at a 10-5 risk level.
Column D2--all at a 10-6
risk level except 23, 30, 37, 38, 42, 68,
89, 91, 93, 104, 105;
23, 30, 37, 38,
42, 68, 89, 91, 93, 104,
105, at a 10-5 risk level.
[[Page 405]]
Delaware River zones 3, 4, and 5, and These classifications are each
Delaware Bay zone 6 assigned the criteria in:
Column C1--all.
Column C2--all.
Column D2--all at a 10-6
risk level except 23, 30, 37, 38, 42, 68,
89, 91, 93, 104, 105;
23, 30, 37, 38,
42, 68, 89, 91, 93, 104,
105, at a 10-5 risk level.
(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 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 This Classification is
assigned criteria in:
Column B1--all, except: 10,
102, 105, 107, 108, 111,
112, 113, 115, 117, and
126.
Column B2--all, except:
105, 107, 108, 112, 113,
115, and 117.
Column D1--all, except: 6,
14, 105, 112, 113, and
115.
Column D2--all, except: 14,
105, 112, 113, and 115.
Class SB, Class SC These Classifications are
assigned criteria in:
Column C1--all, except: 4,
5b, 7, 8, 10, 11, 13, 102,
105, 107, 108, 111, 112,
113, 115, 117, and 126.
Column C2--all, except: 4,
5b, 10, 13, 108, 112, 113,
115, and 117.
Column D2--all, except: 14,
105, 112, 113, and 115.
(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
------------------------------------------------------------------------
Class C................................... This classification is
assigned the additional
criteria in:
Column B2--10, 118,
126
Column D1--15, 16,
44, 67, 68, 79, 80, 81, 88,
114, 116, 118.
------------------------------------------------------------------------
(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
[[Page 406]]
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 the
Class III (marine) criteria in:
Column D2--16
Class III (freshwater) This classification is assigned the
criteria in:
Column D2--16
(iii) The human health criteria shall be applied at the State-
adopted 10-6 risk level.
(7) Michigan, EPA Region 5.
(i) All waters assigned to the following use classifications in the
Michigan Department of Natural Resources Commission General Rules, R
323.1100 designated uses, as defined at R 323.1043. Definitions; A to N,
(i.e., identified in Section (g) ``Designated use'') are subject to the
criteria in paragraph (d)(7)(ii) of this section, without exception:
Agriculture
Navigation
Industrial Water Supply
Public Water Supply at the Point of Water Intake
Warmwater Fish
Other Indigenous Aquatic Life and Wildlife
Partial Body Contact Recreation
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classifications identified in paragraph
(d)(7)(i) of this section:
Use classification Applicable criteria
Public Water supply This classification is
assigned the criteria in:
Column B1--all,
Column B2--all,
Column D1--all.
All other designations These classifications are
assigned the criteria in:
Column B1--all,
Column B2--all, and
Column D2--all.
(iii) The human health criteria shall be applied at the State-
adopted 10-5 risk level. To determine appropriate value for
carcinogens, see footnote c in the criteria matrix in paragraph (b)(1)
of this section.
(8) Arkansas, EPA Region 6.
(i) All waters assigned to the following use classification in
section 4C (Waterbody uses) identified in Arkansas Department of
Pollution Control and Ecology's Regulation No. 2 as amended and
entitled, ``Regulation Establishing Water Quality Standards for Surface
Waters of the State of Arkansas'' are subject to the criteria in
paragraph (d)(8)(ii) of this section, without exception:
Extraordinary Resource Waters
Ecologically Sensitive Waterbody
Natural and Scenic Waterways
Fisheries:
(1) Trout
(2) Lakes and Reservoirs
(3) Streams
(a) Ozark Highlands Ecoregion
(b) Boston Mountains Ecoregion
(c) Arkansas River Valley Ecoregion
(d) Ouachita Mountains Ecoregion
(e) Typical Gulf Coastal Ecoregion
(f) Spring Water-influenced Gulf Coastal Ecoregion
(g) Least-altered Delta Ecoregion
(h) Channel-altered Delta Ecoregion
Domestic Water Supply
(ii) The following criteria from the matrix in paragraph (b)(1) of
this section apply to the use classification identified in paragraph
(d)(8)(i) of this section:
Use classification Applicable criteria
Extraordinary Resource Waters
Ecologically Sensitive
Waterbody
Natural and Scenic Waterways
Fisheries:
(1) Trout
(2) Lakes and Reservoirs
(3) Streams
(a) Ozark Highlands
Ecoregion
(b) Boston Mountains
Ecoregion
(c) Arkansas River Valley
Ecoregion
(d) Ouachita Mountains
Ecoregion
[[Page 407]]
(e) Typical Gulf Coastal
Ecoregion
(f) Spring Water-
influenced Gulf Coastal
Ecoregion
(g) Least-altered Delta
Ecoregion
(h) Channel-altered Delta These uses are each assigned the
Ecoregion criteria in--
Column B1--4, 5a, 5b, 6, 7,
8, 9, 10, 11, 13, 14
Column B2--4, 5a, 5b, 6, 7,
8, 9, 10, 13, 14
(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
------------------------------------------------------------------------
Sections (2)(A), (2)(B), (2)(C), (4)...... These classifications are
each assigned criteria as
follows:
Column B1, 2, 4
Column B2, 4
Column D2, 2, 12,
21, 29, 39, 46, 68, 79, 81,
86, 93, 104, 114, 118
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
[[Page 408]]
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
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
[[Page 409]]
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
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:
[[Page 410]]
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:
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 B1--9, 10, 13,
53, and 126
Column B2--10
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 B1--9, 10, 13,
53, and 126
Column B2--10
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 B1--9, 10, 13,
53, and 126
Column B2--10
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, (2)(C), Column C1--9, 10, 13,
(2)(D) and 53
Column C2--10
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
(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.
[[Page 411]]
(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
(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]