(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. --------------------------------------------------------------------------------------------------------------------------------------------------------
(1) EPA's Section 304(a) criteria for Priority Toxic Pollutants. --------------------------------------------------------------------------------------------------------------------------------------------------------
A B Freshwater C Saltwater D Human Health (10-6 risk for----------------------------------------------------------------------------------------------------------------------- carcinogens) For consumption of:
Criterion Criterion ---------------------------------
Criterion Continuous Criterion Continuous Water &
() Compound CAS Number Maximum Conc. Conc. \d\ Maximum Conc. Conc. \d\ Organisms Organisms Only
\d\ ([micro]g/ ([micro]g/L) \d\ ([micro]g/ ([micro]g/L) ([micro]g/L) ([micro]g/L)
L) (B1) (B2) L) (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
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
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................. 85018100 Pyrene....................... 129000 ............... ............... ............... ............... 960 a 11000 a101 1,2,4-Trichlorobenzene....... 120821102 Aldrin....................... 309002 3 g ............... 1.3 g ............... 0.00013 ac 0.00014 ac103 alpha-BHC.................... 319846 ............... ............... ............... ............... 0.0039 ac 0.013 ac104 beta-BHC..................... 319857 ............... ............... ............... ............... 0.014 ac 0.046 ac105 gamma-BHC.................... 58899 2 g 0.08 g 0.16 g ............... 0.019 c 0.063 c106 delta-BHC.................... 319868107 Chlordane.................... 57749 2.4 g 0.0043 g 0.09 g 0.004 g 0.00057 ac 0.00059 ac108 4,4'-DDT..................... 50293 1.1 g 0.001 g 0.13 g 0.001 g 0.00059 ac 0.00059 ac109 4,4'-DDE..................... 72559 ............... ............... ............... ............... 0.00059 ac 0.00059 ac110 4,4'-DDD..................... 72548 ............... ............... ............... ............... 0.00083 ac 0.00084 ac111 Dieldrin..................... 60571 2.5 g 0.0019 g 0.71 g 0.0019 g 0.00014 ac 0.00014 ac112 alpha-Endosulfan............. 959988 0.22 g 0.056 g 0.034 g 0.0087 g 0.93 a 2.0 a113 beta-Endosulfan.............. 33213659 0.22 g 0.056 g 0.034 g 0.0087 g 0.93 a 2.0 a114 Endosulfan Sulfate........... 1031078 ............... ............... ............... ............... 0.93 a 2.0 a115 Endrin....................... 72208 0.18 g 0.0023 g 0.037 g 0.0023 g 0.76 a 0.81 aj116 Endrin Aldehyde.............. 7421934 ............... ............... ............... ............... 0.76 a 0.81 aj117 Heptachlor................... 76448 0.52 g 0.0038 g 0.053 g 0.0036 g 0.00021 ac 0.00021 ac118 Heptachlor Epoxide........... 1024573 0.52 g 0.0038 g 0.053 g 0.0036 g 0.00010 ac 0.00011 ac119 PCB-1242..................... 53469219 ............... 0.014 g ............... 0.03 g120 PCB-1254..................... 11097691 ............... 0.014 g ............... 0.03 g121 PCB-1221..................... 11104282 ............... 0.014 g ............... 0.03 g122 PCB-1232..................... 11141165 ............... 0.014 g ............... 0.03 g123 PCB-1248..................... 12672296 ............... 0.014 g ............... 0.03 g124 PCB-1260..................... 11096825 ............... 0.014 g ............... 0.03 g125a PCB-1016.................... 12674112 ............... 0.014 g ............... 0.03 g125b 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
=...........................--------------------------------------------------------------------------------------------------------------------------------------------------------
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 WERCCC = 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 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 FactorCCC=WER exp { mC[ln(hardness)]+bC{time} x Chronic
Conversion FactorFinal 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\ 0.909Chromium (III).................... 0.8190 3.688 0.8190 1.561 0.316 0.860Copper............................ 0.9422 -1.464 0.8545 -1.465 0.960 0.960Lead.............................. 1.273 -1.460 1.273 -4.705 \a\ 0.791 \a\ 0.791Nickel............................ 0.8460 3.3612 0.8460 1.1645 0.998 0.997Silver............................ 1.72 -6.52 \b\ N/A \b\ N/A 0.85 \b\ N/AZinc.............................. 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:
CadmiumAcute: 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.
(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 LifeAcute criteria (CMC) 1 Q 10 or 1 B 3Chronic criteria (CCC) 7 Q 10 or 4 B 3
Human HealthNon-carcinogens 30 Q 5Carcinogens 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 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.
(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 areClass B waters where water supply use is assigned the criteria in
designated. Column D1--2, 68Class B waters where water supply use is Each of these
not designated. classifications is assignedClass C;.................................. the criteria in: Column D2--Class SA;................................. 2, 68Class 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.
(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 AClass BClass C
(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 AClass BClass 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)-(4) Reserved]
(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
(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 IClass IIClass III
(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 IClass IIClass 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--16Class II............................... This classification is assignedClass III (marine)..................... the criteria in:
Column D2--16Class 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)-(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 WatersSection (2)(B)--Expected Aquatic Life Use Waters Section (2)(C)--Restricted Aquatic Life Use WatersSection (3)--Domestic Water Supply.Section (4)--Food Procurement Use.
(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 WatersSection (2)(B)--Expected Aquatic Life Use Waters Section (2)(C)--Restricted Aquatic Life Use WatersSection (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.)
(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 Sacramento-San Joaquin Delta within Column C1--
Regional Water Board 5 polluntant 14.
Column C2--
pollutant 14.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
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,
98Waters 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,
98Waters 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 10Waters 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 10Waters of San Francisco Bay upstream to and including These waters
Suisun Bay and the Sacramento-San Joaquin Delta are assigned
the criteria
in:
Column B1--
pollutants 5a,
10* and 14.
Column B2--
pollutants 5a,
10* 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.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 2All 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.
(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, 118Waters 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 Water70.020.(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 wildlife70.020.(2) (A) Marine Water70.020.(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: ------------------------------------------------------------------------
(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,
(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-
(1)(B)(i), (1)(B)(ii), (1)(C).......... Column D2--s 14, 16, 18-21,
(1)(B)(i), (1)(B)(ii), (1)(C).......... Column D2--s 14, 16, 18-21,
(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, 18-21,
(2)(C), (2)(D). 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; Fish............... These classifications are
assigned the criteria in:
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]
Editorial Note: For Federal Register citations affecting Sec. 131.36, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.fdsys.gov.