Document ID: EPA-HQ-OW-2021-0791-0001
Agency: epa
Document Type: Proposed Rule
Title: Water Quality Standards Regulatory Revisions to Protect Tribal Reserved Rights
Posted Date: 2022-12-05T05:00Z

[Federal Register Volume 87, Number 232 (Monday, December 5, 2022)]
[Proposed Rules]
[Pages 74361-74379]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-26240]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 131

[EPA-HQ-OW-2021-0791; FRL-8599-01-OW]
RIN 2040-AG17

Water Quality Standards Regulatory Revisions To Protect Tribal 
Reserved Rights

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The U.S. Environmental Protection Agency (EPA) is proposing 
revisions to the Federal Clean Water Act (CWA) water quality standards 
(WQS) regulation to clarify and prescribe how WQS must protect aquatic 
and aquatic-dependent resources reserved to tribes through treaties, 
statutes, executive orders, or other sources of Federal law, where 
applicable.

DATES: Comments must be received on or before March 6, 2023. Comments 
on the information collection provisions submitted to the Office of 
Management and Budget (OMB) under the Paperwork Reduction Act (PRA) are 
best assured of consideration by OMB if OMB receives a copy of your 
comments on or before January 4, 2023. Public Hearing: EPA will hold 
two online public hearings during the public comment period. Please 
refer to the SUPPLEMENTARY INFORMATION section for additional 
information on the public hearings.

ADDRESSES: You may send comments, identified by Docket ID No. EPA-HQ-
OW-2021-0791, by any of the following methods:
     Federal eRulemaking Portal: https://www.regulations.gov/ 
(our preferred method). Follow the online instructions for submitting 
comments.
     Mail: U.S. Environmental Protection Agency, EPA Docket 
Center, Office of Water Docket, Mail Code 28221T, 1200 Pennsylvania 
Avenue NW, Washington, DC 20460.
     Hand Delivery or Courier: EPA Docket Center, WJC West 
Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. 
The Docket Center's hours of operations are 8:30 a.m.-4:30 p.m., Monday 
through Friday (except Federal holidays).
    Instructions: All submissions received must include the Docket ID 
No. for this rulemaking. Comments received may be posted without change 
to http://www.regulations.gov, including any personal information 
provided. For detailed instructions on sending comments and additional 
information on the rulemaking process, see the ``Public Participation'' 
heading of the SUPPLEMENTARY INFORMATION section of this document.
    EPA is offering two online public hearings on this proposed 
rulemaking. Refer to the SUPPLEMENTARY INFORMATION section below for 
additional information.

FOR FURTHER INFORMATION CONTACT: Jennifer Brundage, Office of Water, 
Standards and Health Protection Division (4305T), Environmental 
Protection Agency, 1200 Pennsylvania Avenue NW, Washington, DC 20460; 
telephone number: (202) 566-1265; email address: 
[email protected]. Additional information is also available 
online at https://www.epa.gov/wqs-tech/protecting-tribal-reserved-rights-in-WQS.

SUPPLEMENTARY INFORMATION: This proposed rule is organized as follows:

I. Public Participation
    A. Written Comments
    B. Public Hearings
II. General Information
    A. Does this action apply to me?
III. Background
    A. Clean Water Act Requirements
    B. Tribal Reserved Rights
    C. Tribal Reserved Rights and Water Quality Standards
IV. Proposed Revisions to the Federal WQS Regulation
    A. Why is EPA proposing these revisions?
    B. What is EPA proposing?
    C. How would the proposed regulatory revisions be applied?
    D. EPA's Role
    E. How would the proposed regulatory revisions apply to States 
in the Great Lakes system?
    F. Role of Other WQS Provisions in Protecting Tribal Reserved 
Rights

[[Page 74362]]

V. Economic Analysis
VI. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and 
Executive Order 13563 Improving Regulation and Regulatory Review
    B. Paperwork Reduction Act (PRA)
    C. Regulatory Flexibility Act (RFA)
    D. Unfunded Mandates Reform Act (UMRA)
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From 
Environmental Health and Safety Risks
    H. Executive Order 13211: Actions That Significantly Affect 
Energy Supply, Distribution, or Use
    I. National Technology Transfer and Advancement Act of 1995
    J. Executive Order 12898: Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations

I. Public Participation

A. Written Comments

    Submit your comments, identified by Docket ID No. EPA-HQ-OW-2021-
0791, at https://www.regulations.gov (our preferred method), or the 
other methods identified in the ADDRESSES section. Once submitted, 
comments cannot be edited or removed from the docket. EPA may publish 
any comment received to its public docket. Do not submit to EPA's 
docket at https://www.regulations.gov any information you consider to 
be Confidential Business Information (CBI), Proprietary Business 
Information (PBI), or other information whose disclosure is restricted 
by statute. Multimedia submissions (audio, video, etc.) must be 
accompanied by a written comment. The written comment is considered the 
official comment and should include discussion of all points you wish 
to make. EPA will generally not consider comments or comment contents 
located outside of the primary submission (i.e., on the web, cloud, or 
other file sharing system). Please visit https://www.epa.gov/dockets/commenting-epa-dockets for additional submission methods; the full EPA 
public comment policy; information about CBI or multimedia submissions; 
and general guidance on making effective comments.

B. Public Hearings

    EPA is offering two online public hearings so that interested 
parties may provide oral comments on this proposed rulemaking. For more 
details on the online public hearings and to register to attend the 
hearings, please visit https://www.epa.gov/wqs-tech/protecting-tribal-reserved-rights-in-WQS.

II. General Information

A. Does this action apply to me?

    States \1\ responsible for administering or overseeing water 
quality programs may be affected by this rulemaking, as states may need 
to consider and implement new provisions, or revise existing 
provisions, in their WQS. Federally recognized Indian tribes \2\ with 
reserved rights \3\ to aquatic and/or aquatic-dependent resources may 
also be affected by this rulemaking. Entities that are subject to CWA 
regulatory programs, such as industries, stormwater management 
districts, or publicly owned treatment works (POTWs) that discharge 
pollutants to waters of the United States could be indirectly affected 
by this rulemaking. Dischargers that could potentially be affected 
include the following:
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    \1\ Pursuant to 40 CFR 131.3(j), ``states'' include the 50 
states, the District of Columbia, Guam, the Commonwealth of Puerto 
Rico, Virgin Islands, American Samoa, the Commonwealth of the 
Northern Mariana Islands, and Indian tribes that EPA determines to 
be eligible for purposes of the WQS program.
    \2\ See Federally Recognized Indian Tribe List Act of 1944, 25 
U.S.C. 479a. The current list can be found at 87 FR 4636 through 
4641 (January 28, 2022).
    \3\ EPA proposes to define ``tribal reserved rights'' as ``any 
rights to aquatic and/or aquatic-dependent resources reserved or 
held by tribes, either expressly or implicitly, through treaties, 
statutes, executive orders, or other sources of Federal law.''

      Table 1--Dischargers Potentially Affected by This Rulemaking
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                                      Examples of potentially affected
             Category                             entities
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Industry..........................  Industries discharging pollutants to
                                     waters of the United States.
Municipalities....................  POTWs or other facilities
                                     discharging pollutants to waters of
                                     the United States.
Stormwater Management Districts...  Entities responsible for managing
                                     stormwater runoff.
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    This table is not intended to be exhaustive, but rather provides a 
guide for readers regarding entities that could be indirectly affected 
by this action. If you have questions regarding the applicability of 
this action to a particular entity, consult the person listed in the 
FOR FURTHER INFORMATION CONTACT section.

III. Background

A. Clean Water Act Requirements

    The CWA establishes the basic structure for regulating pollutant 
discharges into waters of the United States. In the CWA, Congress 
established the national objective to ``restore and maintain the 
chemical, physical, and biological integrity of the Nation's waters,'' 
and to achieve ``wherever attainable, an interim goal of water quality 
which provides for the protection and propagation of fish, shellfish, 
and wildlife and provides for recreation in and on the water'' (CWA 
sections 101(a) and 101(a)(2)).
    CWA section 303(c) directs states to adopt WQS for waters of the 
United States. The core components of WQS are designated uses, water 
quality criteria, and antidegradation requirements. Designated uses 
establish the environmental objectives for a water body, such as public 
drinking water supply, propagation of fish, shellfish and wildlife, and 
recreation. Water quality criteria define the minimum conditions 
necessary to achieve those environmental objectives. Antidegradation 
requirements maintain and protect water quality.
    WQS serve as the basis for several CWA programs, including:
     Section 303(d) water body assessments and determinations 
of total maximum daily loads (TMDLs);
     Section 401 certifications of Federal licenses and 
permits;
     Water quality-based effluent limits in permits issued 
through state or National Pollutant Discharge Elimination System 
(NPDES) Programs under section 402; and
     Section 404 permits for dredged or fill material.
    Section 303(c)(2)(A) of the CWA provides that ``[water quality] 
standards shall be such as to protect the public health or welfare, 
enhance the quality of water and serve the purposes of this chapter. 
Such standards shall be established taking into consideration

[[Page 74363]]

their use and value for public water supplies, propagation of fish and 
wildlife, recreational purposes, and agricultural, industrial, and 
other purposes, and also taking into consideration their use and value 
for navigation.'' CWA section 303(c)(2)(A) and EPA's implementing 
regulation at 40 CFR part 131 require, among other things, that a 
state's WQS specify appropriate designated uses of the waters and water 
quality criteria to protect those uses. Such criteria must be based on 
sound scientific rationale, must contain sufficient parameters to 
protect the designated use, must support the most sensitive use where 
multiple use designations apply, and may be expressed in either 
narrative or numeric form.\4\ See 40 CFR 131.11(a) and (b). In 
addition, 40 CFR 131.10(b) provides that in designating uses of a water 
body and establishing criteria to protect those uses, the state shall 
``. . . ensure that its water quality standards provide for the 
attainment and maintenance of the water quality standards of downstream 
waters.''
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    \4\ Special requirements apply to ``priority toxic pollutants.'' 
CWA Section 303(c)(2)(B) requires states to adopt numeric criteria, 
where available, for all toxic pollutants listed pursuant to CWA 
Section 307(a)(1) for which EPA has published 304(a) criteria, as 
necessary to support the states' designated uses. ``Priority toxic 
pollutants'' are identified in 40 CFR part 423, Appendix A--126 
Priority Pollutants. Consistent with Sec.  131.11(a)(2), where a 
state or authorized tribe adopts narrative criteria for priority 
pollutants to protect designated uses, it must also provide 
information identifying the method by which it intends to regulate 
point source discharges of priority pollutants in water quality-
limited waters based on such narrative criteria.
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    Antidegradation requirements provide a framework for maintaining 
and protecting water quality that has already been achieved (40 CFR 
131.12). States can also choose to include general policies in their 
WQS that affect WQS implementation, such as WQS variance policies and 
mixing zone policies (40 CFR 131.13).
    States are required to review applicable WQS at least once every 
three years (``triennial review'') and, if appropriate, to revise or 
adopt new standards (CWA section 303(c)(1)). Any new or revised WQS 
must be submitted to EPA for review. If EPA disapproves a state's new 
or revised WQS, the CWA provides the state ninety days to adopt a 
revised WQS that meets CWA requirements. If a state fails to meet that 
deadline, EPA is required to promptly propose and promulgate a new 
standard that meets CWA requirements.
    CWA section 303(c)(4)(B) authorizes the Administrator to determine, 
even in the absence of a state submission, that a new or revised 
standard is necessary to meet CWA requirements. Once the Administrator 
makes such a determination, the agency must ``promptly'' propose an 
appropriate WQS and finalize it within 90 days unless the state adopts 
an acceptable standard in the interim. CWA section 501(a) authorizes 
the Administrator to ``prescribe such regulations as are necessary to 
carry out his functions under this chapter.'' Finally, as further 
discussed in section III.C. of this preamble, CWA section 511(a)(3) 
provides that the Act ``shall not be construed as . . . affecting or 
impairing the provisions of any treaty of the United States.''

B. Tribal Reserved Rights

    For the purposes of this proposed rulemaking, ``tribal reserved 
rights'' means any rights to aquatic and/or aquatic-dependent resources 
reserved or held by tribes, either expressly or implicitly, through 
treaties, statutes, executive orders, or other sources of Federal 
law.\5\ Tribal reserved rights as defined in this proposed rulemaking 
generally do not address the quantification of Winters rights.\6\ The 
Court has described tribal reserved rights to fish and access fishing 
locations as ``not much less necessary to the existence of the Indians 
than the atmosphere they breathed[.]'' \7\ EPA recognizes that tribal 
reserved rights to use and access natural and cultural resources are an 
intrinsic part of tribal life and are of deep cultural, economic, and 
subsistence importance to tribes.\8\
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    \5\ Treaty rights are ``reserved'' by tribes, because, as the 
U.S. Supreme Court has explained, treaties are ``not a grant of 
rights to the Indians, but a grant of rights from them, a 
reservation of those not granted.'' United States v. Winans, 198 
U.S. 371, 381 (1905).
    \6\ Under Winters v. United States and its progeny, the 
establishment of a Federal reservation (Indian or otherwise) 
implicitly reserves sufficient water to accomplish the purposes of 
the reservation. 207 U.S. 564, 576 (1908); Cappaert v. United 
States, 426 U.S. 128, 139 (1976); Arizona v. California, 373 U.S. 
546, 597-602 (1963).
    \7\ Winans, 198 U.S. at 381.
    \8\ See 2021 Memorandum of Understanding Regarding Interagency 
Coordination and Collaboration for the Protection of Tribal Treaty 
Rights and Reserved Rights. Available online at https://www.doi.gov/sites/doi.gov/files/interagency-mou-protecting-tribal-treaty-and-reserved-rights-11-15-2021.pdf.
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    The U.S. Constitution defines treaties as part of the supreme law 
of the land, with the same legal force as Federal statutes.\9\ From 
1778 to 1871, the U.S.' relations with tribes were defined and 
conducted largely through treaty-making. In 1871, Congress stopped 
making treaties with tribes,\10\ and subsequent agreements between 
tribes and the Federal government were instead generally memorialized 
through Executive orders, statutes, and other agreements, such as 
congressionally enacted Indian land claim settlements. Instruments 
other than treaties may also reserve tribal rights, with equally 
binding effect.\11\ As one court explained, generally ``it makes no 
difference whether . . . [tribal] rights derive from treaty, statute or 
executive order, unless Congress has provided otherwise.'' \12\ 
Pursuant to the Constitution's Supremacy Clause, treaties and statutes 
also bind states.\13\
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    \9\ U.S. Constitution, Art. VI, cl. 2 (``This constitution, and 
the laws of the United States which shall be made in pursuance 
thereof; and all treaties made, or which shall be made, under the 
authority of the United States, shall be the supreme law of the 
land; and the judges in every state shall be bound thereby, anything 
in the constitution or laws of any State to the contrary 
notwithstanding.'')
    \10\ See Act of Mar. 3, 1871, Sec.  1, 16 Stat. 544 (codified as 
carried forward at 25 U.S.C. 71).
    \11\ See Cohen's Handbook of Federal Indian Law Sec.  18.02 
(Nell Jessup Newton et al eds., 2005) (``Statutes and agreements 
that are ratified by Congress become, like treaties, the supreme law 
of the land'').
    \12\ Parravano v. Masten, 70 F.3d 539, 545 (9th Cir. 1995), 
cert. denied, Parravano v. Babbitt, 518 U.S. 1016 (1996); see also 
United States v. Dion, 476 U.S. 734, 745, n.8 (``Indian reservations 
created by statute, agreement, or executive order normally carry 
with them the same implicit hunting rights as those created by 
treaty.'').
    \13\ Antoine v. Washington, 420 U.S. 194, 205 (1975) (like a 
treaty, when Congress by statute ratifies an agreement that reserves 
tribal rights, ``State qualification of the rights is precluded by 
force of the Supremacy Clause, and neither an express provision 
precluding state qualification nor the consent of the State [is] 
required''); U.S. v. Washington, 853 F.3d 946, 966 (9th Cir. 2017) 
(Holding that ``in building and maintaining barrier culverts within 
the Case Area, Washington has violated, and is continuing to 
violate, its obligation to the Tribes under the Treaties.'') aff'd, 
138 S.Ct. 1832 (per curiam); Skokomish Indian Tribe v. United 
States, 410 F.3d 506, 512 (9th Cir. 2005) (Treaties ``constitute the 
`supreme law of the land''' and have ``been found to provide rights 
of action for equitable relief against non-contracting parties,'' 
and such equitable relief ``ensures compliance with a treaty; that 
is, it forces state governmental entities and their officers to 
conform their conduct to federal law.''); see also Minnesota v. 
Mille Lacs Band of Chippewa Indians, 526 U.S. 172, 204 (1999) 
(noting that ``[a]lthough States have important interests in 
regulating wildlife and natural resources within their borders, this 
authority is shared with the Federal Government when the Federal 
Government exercises one of its enumerated constitutional powers, 
such as treaty making,'' and accordingly, the treaty in that case 
gave the Chippewa Tribe ``the right to hunt, fish, and gather in the 
ceded territory free of . . . state, regulation.'').
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    Courts generally adhere to several guiding principles in 
interpreting treaties and other Federal legal instruments regarding 
Indians tribes known as the ``Indian canons of construction.'' In 
accordance with these canons, ``Indian treaties are to be interpreted 
liberally in favor of the Indians, and any ambiguities are to be

[[Page 74364]]

resolved in their favor.'' \14\ Further, treaties ``are to be construed 
as the Indians would have understood them'' at the time of signing.\15\ 
Although Congress may abrogate Indian treaty rights, those rights 
remain absent clear evidence of congressional intent.\16\ While these 
Indian canons of construction originated in the context of treaty 
interpretation by Federal courts, courts have also applied the canons 
in other contexts,\17\ including determining the scope of tribes' 
rights under statutes or executive orders setting aside land for 
tribes.\18\ Some tribes have treaty rights that are no longer 
enforceable because they have been abrogated or otherwise superseded by 
Congress in later Federal statutes.\19\ In addition, some tribes 
negotiated treaties with the U.S. government that were not 
ratified.\20\
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    \14\ Mille Lacs, 526 U.S. at 200 (internal citations omitted); 
see also County of Oneida v. Oneida Indian Nation, 470 U.S. 226, 247 
(1985) (``it is well established that treaties should be construed 
liberally in favor of the Indians with ambiguous provisions 
interpreted for their benefit'').
    \15\ Mille Lacs, 526 U.S. at 196 (``[W]e interpret Indian 
treaties to give effect to the terms as the Indians themselves would 
have understood them.''); Jones v. Meehan, 175 U.S. 1, 11 (1899) (A 
``treaty must therefore be construed, not according to the technical 
meaning of its words to learned lawyers, but in the sense in which 
they would naturally be understood by the Indians.'').
    \16\ Mille Lacs, 526 U.S. at 202 (``Congress may abrogate Indian 
treaty rights, but it must clearly express its intent to do so.''); 
United States v. Dion, 476 U.S. 734, 739-40 (1986) (noting that in 
finding congressional intent to abrogate ``[w]hat is essential is 
clear evidence that Congress actually considered the conflict 
between its intended action on the one hand and the Indian treaty 
rights on the other, and chose to resolve that conflict by 
abrogating the treaty'').
    \17\ See e.g., Hagen v. Utah, 510 U.S. 399, 423-24 (1994) (``For 
more than 150 years, we have applied this canon in all areas of 
Indian law to construe congressional ambiguity or silence, in 
treaties, statutes, executive orders, and agreements, to the 
Indians' benefit.''); County of Yakima v. Confederated Tribes, 502 
U.S. 251, 268-69 (1992) (quoting Montana v. Blackfeet Tribe, 471 U. 
S. 759, 766 (1985)) (``statutes are to be construed liberally in 
favor of the Indians, with ambiguous provisions interpreted to their 
benefit''); Alaska Pacific Fisheries Co. v. U.S., 248 U.S. 78, 89 
(1918) (``statutes passed for the benefit of dependent Indian tribes 
or communities are to be liberally construed, doubtful expressions 
being resolved in favor of the Indians''); but see Penobscot Nation 
v. Frey, 3 F.4th 484, 502 (1st Cir. 2021) (holding that the Indian 
canons of construction were inapplicable to statutes settling Indian 
land claims in Maine).
    \18\ See Winters, 207 U.S. at 576-77 (applying the canons and 
holding that the Tribe was entitled to federally reserved rights to 
the Milk River); Parravano, 70 F.3d at 544 (applying the canons to 
determine the scope of tribes' reserved fishing rights under 
executive orders and a statute).
    \19\ U.S. Constitution, Art. II, Sec.  2, cl. 2; S. Dakota v. 
Bourland, 508 U.S. 679, 690 (1993) (Statutory language providing 
that ``the sum paid by the Government to the Tribe for former trust 
lands taken for the Oahe Dam and Reservoir Project, `shall be in 
final and complete settlement of all claims, rights, and demands' of 
the Tribe or its allottees'' made clear that the Tribe no longer 
retained its treaty right to regulate hunting and fishing); Dion, 
476 U.S. at 739 (While Congress has the power to abrogate a treaty, 
``the intention to abrogate or modify a treaty is not to be lightly 
imputed . . . Indian treaty rights are too fundamental to be easily 
cast aside.''); U.S. v. McAlester, 604 F.2d 42, 62-63 (10th Cir. 
1979) (describing the history of the Choctaw Tribe's treaty-making 
with the United States, including several treaties in the late 1700s 
and early 1800s providing rights to lands that were later lost due 
to the Indian Removal Act of 1830, which ``finally forced the 
Choctaw Nation to agree . . . to relinquish all its lands east of 
the Mississippi River and to settle on lands west of the Arkansas 
Territory'').
    \20\ Robinson v. Jewell, 790 F.3d 910, 918 (9th Cir. 2015) 
(holding that an 1851 Treaty was never ratified by the Senate and 
thus carries no legal effect.'').
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    Tribal reserved rights may apply to waters in Indian country as 
well as outside of Indian country \21\ and may be express or 
implied.\22\ For example, in certain states in the Great Lakes region, 
tribal reserved rights include hunting, fishing, and gathering rights 
both within tribes' reservations, as well as rights retained outside 
these reservations in specific areas that the tribes ceded to the 
Federal government.\23\ In the Pacific Northwest, treaties explicitly 
reserved to many tribes rights to fish in their ``usual and 
accustomed'' fishing grounds and stations both within and outside their 
reservation boundaries and to hunt and gather throughout their 
traditional territories.\24\ In addition to tribes whose rights are 
reserved through treaties, other tribes have statutorily-reserved 
rights. For example, tribes in Maine have statutorily-reserved rights 
to practice traditional sustenance lifeways such as fishing in certain 
waters.\25\
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    \21\ Indian country is defined at 18 U.S.C. 1151 as: (a) All 
land within the limits of any Indian reservation under the 
jurisdiction of the United States Government, notwithstanding the 
issuance of any patent, and, including rights-of-way running through 
the reservation; (b) all dependent Indian communities within the 
borders of the United States whether within the original or 
subsequently acquired territory thereof, and whether within or 
without the limits of a state; and (c) all Indian allotments, the 
Indian titles to which have not been extinguished, including rights-
of-way running through the same.
    \22\ See Menominee Tribe of Indians v. U.S., 391 U.S. 404, 406, 
(1968) (Noting that ``nothing was said in the 1854 treaty about 
hunting and fishing rights,'' but holding that such rights were 
implied, as the treaty phrase ```to be held as Indian lands are 
held' includes the right to fish and to hunt.''); Makah Indian Tribe 
v. Quileute Indian Tribe, 873 F.3d 1157, 1160 (9th Cir. 2017), cert. 
denied 139 S. Ct. 106 (2018) (Affirming district court finding that, 
based on historical and linguistic evidence, that use of the term 
``fish'' in the Treaty of Olympia encompassed whales and seals).
    \23\ See e.g., Treaty with the Chippewas, 1837, art. 5, 7 Stat. 
536 (tribes retained ``[t]he privilege of hunting, fishing, and 
gathering the wild rice, upon the lands, the rivers and the lakes 
included in the territory ceded''); Minnesota v. Mille Lacs Band of 
Chippewa Indians, 526 U.S. 172 (1999).
    \24\ See, e.g., Treaty with the Nez Perces, 1855, art. 3, 12 
Stat. 957; Treaty with the Nisquallys, etc., 1854, art. 3, 10 Stat. 
1132 (Treaty of Medicine Creek).
    \25\ See Maine Implementing Act, 30 M.R.S 6207(4), (9).
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    Courts also have held that tribal reserved rights encompass 
subsidiary rights that are not explicitly addressed in treaty or 
statutory language but are necessary to render those rights 
meaningful.\26\ For example, in United States v. Winans, 198 U.S. 371, 
381 (1905), the Supreme Court explained that the right of ``taking fish 
at all usual and accustomed places,'' necessarily included the right to 
cross private lands to reach those fishing areas, noting that ``[n]o 
other conclusion would give effect to the treaty.'' \27\
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    \26\ See, e.g., U.S. v. Washington, 853 F.3d 946, 966 (9th Cir. 
2017) (Holding that tribes' treaty-reserved right to fish in their 
usual and accustomed areas imposed a duty on the State of Washington 
to replace or modify road culverts to allow the free passage of 
salmon) aff'd, 138 S.Ct. 1832 (per curiam); Winans, 198 U.S. at 384 
(Holding that a tribe's treaty fishing right also encompassed the 
right to cross private property to access the tribe's traditional 
fishing ground); Grand Traverse Band of Ottawa and Chippewa Indians 
v. Director, Mich. Dept of Nat. Resources, 141 F.3d 635 (6th Cir. 
1989) (Finding that the treaty right to fish commercially in the 
Great Lakes included a right to temporary mooring of treaty fishing 
vessels at municipal marinas because without such mooring the 
Indians could not fish commercially).
    \27\ See also Washington, 853 F.3d at 965 (Explaining that the 
right of access to ``usual and accustomed fishing places would be 
worthless without harvestable fish.'')
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C. Tribal Reserved Rights and Water Quality Standards

    Tribal reserved rights to aquatic resources could be impaired by 
water quality levels that limit right holders' ability to utilize their 
rights. Indeed, as described in section III.B of this preamble, courts 
have recognized that the right to a specific resource necessarily 
includes attendant protections in order to be rendered meaningful.\28\ 
In exercising its CWA section 303(c) authority, EPA has an obligation 
to ensure that its actions are consistent with treaties, statutes, 
executive orders, and other sources of Federal law reflecting tribal 
reserved rights. While there may be instances where a later-enacted 
statutory provision intentionally limits reserved rights,\29\ that is 
not the case with section 303(c) of the CWA. First, with respect to

[[Page 74365]]

treaty-reserved rights, the CWA explicitly provides in section 
511(a)(3) that the Act ``shall not be construed as . . . affecting or 
impairing the provisions of any treaty of the United States.'' Second, 
more broadly, the statute's structure and objectives for the 
establishment and oversight of WQS, including the discretion afforded 
to EPA, provide ample room for the agency to consider and give effect 
to all applicable reserved rights.
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    \28\ Consistent with this precedent, the Department of the 
Interior has affirmed the principle that ``to be rendered 
meaningful, [tribal reserved] fishing rights by necessity include 
some subsidiary rights to water quality.'' Letter from Hilary C. 
Tompkins, Solicitor, DOI, to Avi Garbow, General Counsel, EPA, 
regarding Maine's WQS and Tribal Fishing Rights of Maine Tribes 
(January 30, 2015).
    \29\ See Dion, 476 U.S. at 739 (Finding that ``Congressional 
intent to abrogate Indian treaty rights to hunt bald and golden 
eagles is certainly strongly suggested on the face of the Eagle 
Protection Act.'').
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    In CWA section 303(c), Congress established broad directives and 
objectives governing the establishment of WQS. Specifically, the CWA 
requires that WQS shall consist of designated uses and criteria to 
protect those uses, and must protect the public health and welfare, 
enhance the quality of water, and serve the purposes of the Act. See 
CWA section 303(c)(2)(A). In implementing section 303(c), EPA's 
longstanding position has been, consistent with the objectives of the 
CWA, to ``use standards as a basis of restoring and maintaining the 
integrity of the Nation's waters.'' \30\ Where tribes have reserved 
rights to aquatic and/or aquatic-dependent resources, protection of 
such rights falls within the ambit of these broad statutory directives 
and objectives and is consistent with EPA's longstanding general 
approach to implementing CWA section 303(c), including through adoption 
and revision of its WQS regulation.
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    \30\ Water Quality Standards Regulation, 48 FR 51400 (November 
8, 1983).
---------------------------------------------------------------------------

    CWA section 501 authorizes the agency to prescribe regulations as 
necessary to implement the Act.\31\ Pursuant to that authority, EPA has 
issued a regulation that provides a framework for implementing CWA 
section 303(c) and related sections, translating the broad statutory 
provisions in section 303(c) into specific requirements consistent with 
the statutory scheme. Accordingly, EPA's implementing regulation at 40 
CFR part 131 specifies requirements for states and authorized tribes to 
develop WQS for EPA review that are consistent with the Act. EPA's 
existing WQS regulation does not, however, explicitly address how WQS 
must protect tribal reserved rights.
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    \31\ See also E. I. du Pont de Nemours & Co. v. Train, 430 U.S. 
112, 132 (1977) (``501(a) . . . gives EPA the power to make `such 
regulations as are necessary to carry out' its functions'').
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    EPA established the core of the WQS regulation in a final rule 
issued in 1983. Since that time, the agency has modified 40 CFR part 
131 three times.\32\ The agency has explained that such updates have 
been in response to new challenges that ``necessitate a more effective, 
flexible and practicable approach for the implementation of WQS and 
protecting water quality,'' and that such updates are informed by the 
extensive experience with WQS implementation by states, authorized 
tribes, and EPA.\33\ As described further below, EPA has previously 
addressed tribal reserved rights in exercising its oversight authority 
in reviewing state-adopted WQS. In this rulemaking, EPA is exercising 
its discretion in implementing CWA section 303(c) to propose new 
regulatory requirements to ensure that WQS give effect to rights to 
aquatic and aquatic-dependent resources reserved in Federal laws. With 
this update to 40 CFR part 131, the agency is proposing to establish a 
transparent and consistent process by which states and EPA can set WQS 
that protect applicable reserved rights.
---------------------------------------------------------------------------

    \32\ See Water Quality Standards Regulatory Revisions, 80 FR 
51020, 51021 (August 21, 2015) (Describing the history of EPA's 
regulation at 40 CFR part 131).
    \33\ Id.
---------------------------------------------------------------------------

    EPA has previously addressed tribal reserved rights in state-
specific WQS actions. In 2015, EPA disapproved certain human health 
criteria adopted by the State of Maine because they did not adequately 
protect a sustenance fishing designated use. The sustenance fishing 
designated use was based in part on tribal reserved rights.\34\ In 
2016, in promulgating human health criteria for the State of 
Washington, EPA noted that most waters covered by the State's WQS were 
subject to Federal treaties that retained and reserved tribal fishing 
rights. The agency concluded that these rights must be considered when 
establishing criteria to protect the State's fish harvesting designated 
use.\35\
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    \34\ Letter from H. Curtis Spalding, Regional Administrator, EPA 
Region 1, to Patricia W. Aho, Commissioner, Maine Department of 
Environmental Protection, ``Re: Review and Decision on Water Quality 
Standards Revisions'' (February 2, 2015). After subsequent 
collaboration among the State, EPA, and the tribes, in 2019 the 
State of Maine adopted a new sustenance fishing designated use 
subcategory which addresses tribal sustenance fishing. In 2020, 
after approving this new designated use subcategory, EPA withdrew 
most aspects of its 2015 decisions. The expectations and steps EPA 
proposes here reaffirm the general analytical framework the agency 
applied in the 2015 decisions.
    \35\ 81 FR 85417, 85422 through 85423 (November 28, 2016).
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    These actions followed a December 2014 Memorandum from EPA 
Administrator Gina McCarthy which explicitly recognized EPA's 
obligations with respect to tribal treaty rights.\36\ This Memorandum 
was issued to commemorate the 30th anniversary of EPA's 1984 Indian 
Policy, which addressed many issues related to EPA's relationship with 
federally recognized tribes and implementation of EPA's statutes in 
Indian country, but did not expressly address EPA's considerations of 
tribal treaty and other reserved rights.\37\ In pertinent part, the 
2014 Memorandum provides that ``EPA has an obligation to honor and 
respect tribal rights and resources protected by treaties,'' and that 
``EPA must ensure that its actions do not conflict with tribal treaty 
rights.'' \38\ In 2016, as part of the agency's efforts to implement 
the Memorandum, EPA issued an addendum to its tribal consultation 
policy entitled ``Guidance for Discussing Tribal Treaty Rights'' with 
the purpose of enhancing EPA consultations where EPA actions may affect 
tribal treaty rights.\39\ The goal of this document was to help ensure 
that EPA's actions do not conflict with treaty rights, and that EPA is 
fully informed as it seeks to implement its programs to further protect 
treaty rights and resources when it has discretion to do so.\40\ Even 
before this Guidance was issued in 2016, EPA routinely undertook 
extensive consultation with tribes. For example, in the agency's 
actions in Maine and Washington with regard to WQS, EPA undertook 
extensive consultation with the federally recognized tribes in Maine 
and Washington which included, consistent with the objectives of that 
guidance, gathering information regarding relevant reserved rights.\41\
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    \36\ U.S. EPA, Memorandum, Commemorating the 30th Anniversary of 
the EPA Indian Policy (December 1, 2014), available https://www.epa.gov/sites/production/files/2015-05/documents/indianpolicytreatyrightsmemo2014.pdf.
    \37\ Id. See also U.S. EPA, EPA Policy for the Administration of 
Environmental Programs on Indian Reservations (November 8, 1984), 
available https://www.epa.gov/sites/default/files/2015-04/documents/indian-policy-84.pdf.
    \38\ Id.
    \39\ U.S. EPA, EPA Policy on Consultation and Coordination with 
Indian Tribes: Guidance for Discussing Tribal Treaty Rights 
(February 2016), available https://www.epa.gov/sites/default/files/2016-02/documents/tribal_treaty_rights_guidance_for_discussing_tribal_treaty_rights.pdf
.
    \40\ U.S. EPA, Overview: EPA Policy on Consultation and 
Coordination with Indian Tribes: Guidance for Discussing Tribal 
Treaty Rights (February 2016), available https://www.epa.gov/sites/default/files/2016-02/documents/tribal_treaty_rights_guidance_for_discussing_tribal_treaty_rights.pdf
.
    \41\ See U.S. EPA Region 1, Responses to Public Comments 
Relating to Maine's January 14, 2013, Submission to EPA for Approval 
of Certain of the State's New and Revised Water Quality Standards 
(WQS) That Would Apply in Waters Throughout Maine, Including Within 
Indian Territories or Lands (January 30, 2015), at 1540 (describing 
tribal consultation); 81 FR 85417 at 85435 (November 28, 2016).

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[[Page 74366]]

    Although the agency did not rescind the Memorandum and Guidance for 
Discussing Tribal Treaty Rights, following EPA's 2015 and 2016 WQS 
actions in Maine and Washington, the agency did make statements in 
subsequent WQS actions disavowing the approach to protecting tribal 
reserved rights in the Maine and Washington actions. In response to 
comments on a 2020 decision reversing aspects of EPA's 2015 Maine WQS 
disapproval, EPA asserted that it was ``unnecessary'' to ensure 
protection of applicable statutorily reserved rights because the Indian 
land claims settlement statutes at issue did not ``themselves . . . 
address or reference designated uses, water quality criteria, or the 
desired condition or use goal of the waters covered by the sustenance 
fishing provisions.'' \42\ EPA has reconsidered this assertion. EPA 
finds that implementing the CWA to give effect to applicable reserved 
rights to aquatic and/or aquatic-dependent resources does not require 
that the relevant treaty, statute, executive order, or legal instrument 
explicitly reference water quality. The agency has similarly 
reconsidered other statements the agency made indicating that states 
and EPA can always protect tribal reserved rights by simply applying 
EPA's existing regulations and guidance, with no additional 
consideration of such rights.\43\ As explained further below, this 
proposed rulemaking adds regulatory requirements to clarify how EPA and 
states must ensure protection of reserved rights where they apply.
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    \42\ U.S. EPA, Response to Comments on EPA's Proposal to Revise 
EPA's 2015 Decisions on Sustenance Fishing Designated Use and Human 
Health Criteria in Maine (May 27, 2020), p. 20. Attachment B of 
letter from Dennis Deziel, Administrator, EPA Region 1, to Gerald 
Reid, Commissioner, Maine Department of Environmental Protection, RE 
Withdrawal of Certain of EPA's February 2, 2015 Decisions Concerning 
Water Quality Standards for Waters in Indian Lands.
    \43\ See U.S. EPA, Letter and enclosed Technical Support 
Document from Chris Hladick, Regional Administrator, EPA Region 10, 
to Maia Bellon, Director, Department of Ecology, Re: EPA's Reversal 
of the November 15, 2016 Clean Water Act Section 303(c) Partial 
Disapproval of Washington's Human Health Water Quality Criteria and 
Decision to Approve Washington's Criteria (May 10, 2019), p. 22-23 
(``May 10, 2019 Decision Document'').
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IV. Proposed Revisions to the Federal WQS Regulation

A. Why is EPA proposing these revisions?

    In this proposed rulemaking, the agency is proposing to establish 
new requirements which build on existing regulations and applicable 
guidance, to provide a nationally applicable regulatory framework to 
ensure that WQS protect applicable reserved rights. These revisions to 
EPA's existing WQS regulation are intended to provide clarity, 
predictability, and transparency in EPA's review of state WQS and 
promulgation of Federal WQS in waters where reserved rights to aquatic 
and/or aquatic-dependent resources apply. Specifically, by amending 
EPA's WQS regulation, rather than addressing these rights on a case-by-
case basis as state WQS are submitted for EPA review under CWA section 
303(c), EPA is proposing a uniform approach for establishment of WQS 
where tribal reserved rights apply and clearly laying out how EPA will 
review such WQS. These proposed changes are informed by EPA's 
experience working with states and right holders, and by input they 
have provided. Because EPA is establishing these requirements in a 
rulemaking rather than during review of an individual state action, the 
agency's approach will be informed by public comment and input provided 
through tribal consultation.
    Notably, when EPA promulgated the WQS regulation at 40 CFR part 131 
in 1983, the agency considered adding regulatory requirements to ensure 
that state WQS complied with applicable international treaties. 
Specifically, in the 1983 final rule establishing the WQS regulation, 
the agency noted that it had received comments asserting that EPA 
should ``require States to adopt standards that meet treaty 
requirements.'' \44\ In response, the agency noted that such issues 
``have been adequately resolved previously without the need for 
regulatory language,'' and, accordingly, that ``EPA sees no need to 
include such language in the Final Rule.'' \45\ The agency further 
reasoned that ``[a]ny specific treaty requirements have the force of 
law,'' and therefore, ``State water quality standards will have to meet 
any treaty requirements.'' \46\ Here, based on its prior experience 
evaluating individual state WQS in light of applicable reserved rights, 
EPA is proposing to add specific requirements to its WQS regulation to 
guide states establishing WQS in waters where tribes exercise reserved 
rights. These proposed requirements reflect the agency's considered 
judgment about how to ensure that WQS protect applicable reserved 
rights, and will provide clarity, transparency, and predictability.
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    \44\ 48 FR 51400, 51412 (November 8, 1983).
    \45\ Id.
    \46\ Id. at 51413.
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    This proposal is particularly important now, as climate change is 
exacerbating water quality issues across the United States. Tribes and 
reserved rights are particularly vulnerable to these impacts due to the 
integral nature of water resources in their traditional lifeways and 
culture.\47\ Establishing WQS to protect tribal reserved rights is a 
critical component of reducing the impact of climate change on tribes.
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    \47\ See https://www.epa.gov/sites/default/files/2016-04/documents/ow-climate-change-adaptation-plan.pdf.
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B. What is EPA proposing?

    In this rulemaking, EPA is proposing to (1) amend the Federal WQS 
regulation at 40 CFR part 131 to require that WQS be established to 
protect tribal reserved rights, and (2) establish attendant regulatory 
requirements for setting WQS to provide such protection. This section 
provides a description of these proposed revisions.
    Central to these regulatory changes is the proposed addition of 40 
CFR 131.9. First, this provision would specify that WQS ``must protect 
tribal reserved rights applicable to waters subject to such 
standards.'' For purposes of these regulatory revisions, EPA proposes 
adding a new definition to 40 CFR 131.3, defining ``tribal reserved 
rights'' as ``any rights to aquatic and/or aquatic-dependent resources 
reserved or held by tribes, either expressly or implicitly, through 
treaties, statutes, executive orders, or other sources of Federal 
law.'' The proposed definition of ``tribal reserved rights'' in the 
rule does not apply to unratified treaties or reserved rights that have 
been abrogated or otherwise superseded. In addition, some tribes 
entered into legal agreements or compacts with states, which are not 
Federal law and are therefore similarly not within the scope of this 
rulemaking.
    Second, proposed 40 CFR 131.9(a) would require that, ``to the 
extent supported by available data and information,'' to protect 
applicable tribal reserved rights WQS must be established to protect:
    1. ``The exercise of tribal reserved rights unsuppressed by water 
quality or availability of the aquatic or aquatic-dependent resource;'' 
and
    2. ``The health of the right holders to at least the same risk 
level as provided to the general population of the State.''
    For purposes of these regulatory revisions, EPA proposes adding a 
new definition to 40 CFR 131.3, defining ``right holders'' as ``tribes 
holding rights to aquatic and/or aquatic-dependent resources pursuant 
to an applicable treaty, statute, executive order, or other source of 
Federal law.''
    EPA is not proposing to require WQS to be established for every 
waterbody subject to a reserved right to protect the

[[Page 74367]]

waterbody condition that existed at the time a reserved right was 
established. As described more fully below in section C.2.ii of this 
preamble, the regulation is intended to result in WQS that protect 
reasonably anticipated future uses, taking into account factors that 
may have substantially altered a waterbody.
    Proposed 40 CFR 131.9(b) specifies that EPA will initiate tribal 
consultation with the right holders in determining whether State water 
quality standards protect applicable reserved rights in accordance with 
40 CFR 131.9(a)(1) and (2). Finally, proposed 40 CFR 131.9(c) describes 
the three different ways that WQS can be used where tribal reserved 
rights apply to ensure protection of those rights.
    EPA is also proposing to revise 40 CFR 131.5 (``EPA Authority''). 
40 CFR 131.5(a) lists the factors that EPA considers in determining 
whether state-adopted WQS are consistent with CWA section 303(c). EPA 
is proposing to add Sec.  131.5(a)(9) specifying that when reviewing 
new or revised standards, EPA would evaluate whether water quality 
standards sufficiently protect tribal reserved rights, where 
applicable, consistent with Sec.  131.9. EPA is proposing conforming 
revisions to 40 CFR 131.5(b) which would require that this new factor, 
in addition to the other existing eight factors in 40 CFR 131.5(a), be 
met for EPA to approve the WQS.
    EPA is also proposing to add an element to the list of ``Minimum 
Requirements for Water Quality Standards Submission'' set forth in 40 
CFR 131.6. This proposed addition provides clarity on EPA's 
expectations regarding how states must document their efforts to 
ascertain information, in coordination with the right holders, about 
applicable tribal reserved rights and the level of water quality that 
fully supports those rights. Specifically, EPA is proposing that where 
tribal reserved rights apply to WQS being submitted, those submissions 
would need to include:
    1. Information about the scope, nature, and current and past use of 
the tribal reserved rights, as informed by the right holders; and
    2. Data and methods used to develop the WQS.
    Finally, EPA is proposing to modify the procedures for state review 
and revision of WQS at 40 CFR 131.20 to require that the triennial 
review process include an evaluation of whether there are tribal 
reserved rights applicable to waters subject to the state's WQS and 
whether WQS need to be revised to protect those rights.
    Pursuant to 40 CFR 131.22(c), EPA would be subject to the same 
requirements when promulgating Federal WQS. In accordance with CWA 
section 303(c)(4), there are two scenarios in which EPA would 
promulgate Federal WQS for the waters of a state. First, CWA section 
303(c)(4)(A) establishes that if EPA determines that a state's new or 
revised WQS is not consistent with the requirements of the Act and the 
state fails to submit a modified standard within 90 days of that 
decision, EPA must itself propose and promulgate a revised or new 
standard for the waters involved (unless prior to promulgation the 
state has adopted a WQS that EPA determines to be consistent with the 
Act). Second, CWA section 303(c)(4)(B) grants the EPA Administrator 
discretion to determine ``that a revised or new standard is necessary 
to meet the requirements of [the Act].'' Following such a 
determination, EPA is required to propose and promulgate a revised or 
new standard except as noted above.
    Examples of how these proposed regulatory revisions would be 
applied and EPA's basis for them are explained in more detail in the 
next section.

C. How would the proposed regulatory revisions be applied?

    The effect of these proposed revisions on the establishment or 
revision of a state's WQS will be case-specific. EPA anticipates that 
these proposed revisions would be relevant in states where federally 
recognized tribes hold reserved rights to aquatic or aquatic-dependent 
resources in waters where the state, rather than the right holder, 
establishes applicable WQS.
    Whether reserved rights apply to waters subject to a state's new or 
revised WQS would be informed by several factors, including input from 
the right holders, other sources of information regarding relevant 
tribal reserved rights (including information about the geographic 
scope of those rights), and the available data to inform the level of 
water quality needed to protect the reserved rights.
1. Determining if Tribal Reserved Rights Apply
    Examples of tribal reserved rights as defined in this proposed 
rulemaking include but are not limited to the rights to fish; gather 
aquatic plants; and to hunt for aquatic-dependent animals. EPA requests 
comment on whether there are additional types of tribal reserved rights 
that it should consider. EPA acknowledges that it may be a complex 
inquiry to determine if tribal reserved rights apply in waters subject 
to state WQS, and if so, the nature of those rights and where they 
apply. For purposes of implementation of this proposed rulemaking, the 
critical information needed to determine if a reserved right applies to 
a state's waters includes, but may not be limited to: (1) the nature of 
the right (i.e., a fishing right, a hunting right, a resource gathering 
right); (2) where the right applies (i.e., to a specific set of 
waterbodies or to waters generally within a broad geographic area); and 
(3) how the right is exercised by the right holders (e.g., for 
subsistence purposes).\48\
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    \48\ EPA encourages, to the extent practicable, the 
consideration and incorporation of any Indigenous Knowledge that is 
freely provided by right holders. Given the sensitivity of some 
information about tribal reserved rights, right holders, states and 
EPA should discuss in advance how the information will be shared and 
potentially used in the WQS context.
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    A first step in obtaining this information should be engagement 
with potential right holders. Accordingly, when WQS are being evaluated 
or revised, early engagement with federally recognized tribes within 
the relevant state as well as tribes outside the state that exercise 
resource rights within that state, can help EPA and states determine if 
there are reserved rights, the scope of those rights, and whether and 
how they should be applied in the WQS context. In order to ensure that 
tribes with reserved rights are engaged in the process of determining 
whether reserved rights apply, proposed 40 CFR 131.6(g)(1) would 
require that WQS submissions to EPA include information about tribal 
reserved rights ``as informed by the right holders,'' where applicable.
    In addition to any outreach to or engagement with tribes as part of 
establishing new or revised WQS, proposed 40 CFR 131.20(a) provides a 
mechanism for starting the process of such engagement. It would require 
states to evaluate whether there are applicable tribal reserved rights 
relevant to waters subject to the state's WQS during the public 
triennial review process. To help satisfy this requirement, states 
should explicitly request information regarding the nature and scope of 
tribal reserved rights in each triennial review, thus providing an 
opportunity for the right holders to engage and provide information the 
state can use in its evaluation. Additionally, right holders are 
encouraged to proactively share information with states and EPA about 
any tribal reserved rights that may be relevant, including through the 
triennial review process.
    These proposed provisions would provide a role for the right 
holders in

[[Page 74368]]

informing both the initial inquiry of whether tribal reserved rights 
apply and, where reserved rights are applicable, how those reserved 
rights could be protected through implementation of the requirements of 
the proposed rulemaking. Specifically, determinations regarding 
protection of tribal reserved rights should be made through a process 
of mutual consideration and discussion between right holders, states, 
and the Federal government.
    In addition to seeking input from potential right holders, EPA will 
also consider other sources of information regarding applicable tribal 
reserved rights including the language of the treaties, statutes, or 
Executive orders and relevant judicial precedent.\49\
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    \49\ Although, as stated above, legal agreements tribes have 
entered into solely with states and other non-Federal government 
entities are not Federal law and therefore not within the scope of 
this rulemaking, EPA recommends that states use a similar framework 
to consider tribal rights reserved under state law when developing 
and revising WQS.
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2. Protecting Applicable Reserved Rights
    Proposed 40 CFR 131.9(a) would require states to derive WQS to 
protect any tribal reserved rights that were determined to be 
applicable. This would require determining the level of water quality 
necessary to protect users of the resource and/or the aquatic or 
aquatic-dependent resource itself, based on available data. This level 
of water quality is to be determined by applying proposed 40 CFR 
131.9(a)(1) and (2), described further below. Once applicable reserved 
rights to aquatic and/or aquatic-dependent resources have been 
identified, the proposed regulations provide a mechanism for 
establishing WQS at a level of water quality that protects those 
resources and users of those resources, consistent with the CWA.
i. Determining the Level of Water Quality Necessary To Protect the 
Right
    Determining the level of water quality necessary to protect any 
aquatic or aquatic-dependent resource or users of that resource can be 
a complex endeavor that involves weighing multiple lines of evidence. 
However, this endeavor will largely mirror the process states already 
follow in developing their WQS. Examples of such evidence include fish 
consumption rate surveys, studies or accounts of heritage fish 
consumption rates,\50\ peer-reviewed articles or reports on the types 
and levels of pollutants that can adversely affect the resource in 
question, and monitoring data reflecting historic and/or current water 
quality. EPA requests comment on the types of historic information that 
states and EPA should consider.
---------------------------------------------------------------------------

    \50\ A heritage rate is the amount of fish consumed prior to 
non-indigenous or modern sources of contamination and interference 
with the natural lifecycle of fish, in addition to changes in human 
society. While it is often thought of as a historic rate, it can 
also be reflective of a current unsuppressed rate. See: USEPA. 2016. 
Guidance for Conducting Fish Consumption Surveys. EPA-823B16002.
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    In some instances, readily available information would be 
sufficient to identify specific numeric levels of water quality (e.g., 
numeric criteria) necessary to protect the right. In other instances, 
such data and information may not be currently available. 40 CFR 
131.9(a) acknowledges this by providing that WQS must be consistent 
with 40 CFR 131.9(a)(1) and (2) ``to the extent supported by available 
data and information.'' Where data and information are not currently 
available to support establishing numeric levels of water quality, or 
where data are inconclusive, states may adopt narrative WQS to protect 
the right. EPA is available to assist states in gathering more 
information, in coordination with the right holders, for future use.
    In complying with the new regulation, EPA encourages ongoing 
communication between states and right holders to help states ascertain 
where reserved rights apply and what data are available to inform the 
level of water quality necessary to protect those rights. EPA would be 
available to facilitate dialogue and information-sharing as needed.
    Proposed 40 CFR 131.6(g) would require states to submit ``data and 
methods used'' to develop WQS that protect tribal reserved rights. As 
with information regarding the tribal reserved rights themselves, 
information regarding the types and levels of pollutants that may 
impact those rights should also be informed by engagement with the 
right holders. EPA recommends that states request information from the 
right holders such as types of pollutants perceived to be impacting 
their rights, key aquatic species, and/or consumption rates that would 
be useful in developing protective WQS, pursuant to proposed 40 CFR 
131.20(a). EPA recommends that right holders proactively share any such 
information with states and EPA. Obtaining these data is another reason 
that states should work closely with right holders and EPA early in the 
process of evaluating and revising WQS. As with all WQS actions, states 
must transparently share information with the public during their 
process for reviewing and revising WQS (40 CFR 131.20(b)). The data and 
information gathered and submitted pursuant to proposed 40 CFR 131.6(g) 
will inform implementation of proposed 40 CFR 131.9.
ii. Accounting for Suppression Effects
    Proposed 40 CFR 131.9(a)(1) would require that WQS, to the extent 
supported by available data and information, be established to protect 
``the exercise of the tribal reserved rights unsuppressed by water 
quality or availability of the aquatic or aquatic-dependent resource.'' 
This proposed requirement is intended to address situations where 
existing water quality is lower than necessary to allow for right 
holders to fully exercise their tribal reserved rights. For example, 
fish consumption by tribes exercising their treaty-protected right to 
fish for subsistence may be suppressed due to availability of fish or 
concerns about the safety of fish for human consumption.\51\ Treaty-
protected harvesting of wild rice on waterbodies where harvesting 
historically occurred may likewise be suppressed due to diminished wild 
rice populations.
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    \51\ As noted by the National Environmental Justice Advisory 
Council in the 2002 publication Fish Consumption and Environmental 
Justice, ``a suppression effect may arise when fish upon which 
humans rely are no longer available in historical quantities (and 
kinds), such that humans are unable to catch and consume as much 
fish as they had or would. Such depleted fisheries may result from a 
variety of affronts, including an aquatic environment that is 
contaminated, altered (due, among other things, to the presence of 
dams), overdrawn, and/or overfished. Were the fish not depleted, 
these people would consume fish at more robust baseline levels. . . 
.In the Pacific Northwest, for example, compromised aquatic 
ecosystems mean that fish are no longer available for tribal members 
to take, as they are entitled to do in exercise of their treaty 
rights.''). National Environmental Justice Advisory Council, Fish 
Consumption and Environmental Justice, p.44, 46 (2002) (NEJAC Fish 
Consumption Report) available at https://www.epa.gov/sites/default/files/2015-02/documents/fish-consump-report_1102.pdf.
---------------------------------------------------------------------------

    This rulemaking does not establish any nationally applicable 
thresholds for unsuppressed levels or use of a resource. As described 
in the National Environmental Justice Advisory Committee (NEJAC)'s 2002 
report ``Fish Consumption and Environmental Justice,'' the unsuppressed 
level of a resource for particular right holders will depend on the 
factors affecting water quality and availability of the resources for 
that group.\52\
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    \52\ Id, p.49. Using the term ``baseline'' to refer to the 
unsuppressed fish consumption rate, the report says the appropriate 
baseline for determining an unsuppressed level of fish consumption 
``will likely differ according to the circumstances surrounding and 
the group affected by the observed suppression effect . . . . An 
appropriate baseline [unsuppressed level] might mean examination 
into what people had consumed as well as aspiration for what people 
would consume were there `fair access for all to a full range of 
resources,' or were the conditions fulfilled for full exercise of 
treaty- and trust-protected rights and purposes.''

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[[Page 74369]]

    The unsuppressed level should balance heritage use of a resource 
with what is currently reasonably achievable for a particular 
waterbody. For example, in determining the unsuppressed level of a 
resource for the purpose of establishing WQS, it may be appropriate to 
take into consideration both heritage rates of use of that resource and 
factors that have substantially altered the pollutant burden, 
hydrology, or availability of the resource, such that use of the 
resource at heritage rates is not feasible. For example, EPA approved 
the Spokane Tribe's human health criteria based on a fish consumption 
rate of 865 g/day. This fish consumption rate maintains the caloric 
intake characteristic of a traditional subsistence lifestyle while 
accounting for the lesser quantity and diversity of fish currently 
available to the Tribe as a result of the construction of the Grand 
Coulee Dam.\53\
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    \53\ U.S. EPA Region 10. Technical Support Document for Action 
on the Revised Surface Water Quality Standards of the Spokane Tribe 
of Indians Submitted April 2010. December 11, 2013.
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    Another example is determining which waters to designate for wild 
rice protection in the Great Lakes region. To determine the scope of 
the corresponding designated use, it is appropriate to consider whether 
waters that do not currently support wild rice uses may do so again in 
the future. A state might consider historical growing patterns and 
planned efforts to restore the hydrologic regime and reduce nonpoint 
sources of pollution, while also accounting for hydrologic changes and 
legacy contaminants that may not be feasible to remedy at this time.
    For the purpose of establishing WQS to fulfill the requirements of 
this rulemaking, the unsuppressed level or use of a resource should 
account for situations where restoration efforts are planned or 
underway (e.g., efforts to improve habitat or reduce contamination), 
such that it would be reasonable to expect the opportunities for use of 
the resource to increase in the future. In these situations, where 
supported by available data and information, EPA is proposing to 
require that WQS must be set at levels that reflect unsuppressed 
exercise of the reserved right.
    This emphasis on avoiding suppression effects builds on EPA's 
approach, previously set forth in guidance including EPA's 2000 
Methodology for Deriving Ambient Water Quality Criteria for the 
Protection of Human Health \54\ (2000 Methodology), 2016 Guidance for 
Conducting Fish Consumption Surveys,\55\ and 1985 Guidelines for 
Deriving Numerical National Water Quality Criteria for the Protection 
of Aquatic Organisms and Their Uses.\56\ Each of these documents 
contains information and recommendations that should be considered when 
synthesizing water quality-related data. However, these documents do 
not all speak to setting WQS to protect tribal reserved rights for CWA 
purposes. Accordingly, in its discretion in prescribing WQS regulations 
that give effect to applicable reserved rights, EPA is proposing at 40 
CFR 131.9(a)(1) to require that where tribal reserved rights apply, and 
where supported by available data and information, WQS must be 
established to protect ``the exercise of the tribal reserved rights 
unsuppressed by water quality or availability of the aquatic or 
aquatic-dependent resource.'' \57\
---------------------------------------------------------------------------

    \54\ USEPA. 2000. Methodology for Deriving Ambient Water Quality 
Criteria for the Protection of Human Health. U.S. Environmental 
Protection Agency, Office of Water, Washington, DC EPA-822-B-00-004. 
https://www.epa.gov/wqc/human-health-water-quality-criteria-and-methods-toxics.
    \55\ USEPA. 2016. Guidance for Conducting Fish Consumption 
Surveys. EPA-823B16002.
    \56\ USEPA. 1985. Guidelines for Deriving Numerical National 
Water Quality Criteria for the Protection of Aquatic Organisms and 
Their Uses. U.S. Environmental Protection Agency, Office of Water, 
Washington, DC PB85-227049.
    \57\ In its 2019 approval of Idaho's water quality standards, 
EPA noted that ``[n]othing in the CWA or the EPA's regulations and 
guidance, including the 2000 Methodology, requires a state to set a 
FCR based on an estimate of unsuppressed consumption'' and asserted 
that the concept of requiring a state to use an unsuppressed fish 
consumption rate should be presented for ``thorough public notice 
and comment.'' EPA's Approval of Idaho's New and Revised Human 
Health Water Quality Criteria for Toxics and Other [WQS] Provisions 
(April 4, 2019), p. 12. In this proposed rule, for the reasons 
explained herein, EPA is proposing to amend its WQS regulations to 
require that states use an unsuppressed rate where tribal reserved 
rights apply and where supported by available data and information. 
Consistent with its 2019 letter, EPA is requesting public comment on 
this proposed requirement.
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    This proposed requirement is consistent with the CWA goal to 
``restore and maintain the chemical, physical, and biological integrity 
of the Nation's waters'' (CWA section 101(a)). Indeed, this requirement 
is necessary to ensure that WQS do not merely reinforce an existing 
suppressed use that may already limit right holders' ability to 
exercise their reserved rights, or worse, set in motion a ``downward 
spiral'' \58\ of further reduction/suppression. Therefore, where 
exercise of reserved rights is suppressed, states would need to seek 
available information about past and present use of the resource, and 
any information about reasonably anticipated future uses, to help 
ascertain the level of water quality necessary to fully protect the 
right.\59\ EPA strongly encourages states to coordinate with right 
holders to gather information about unsuppressed uses and for right 
holders to proactively share such information with states and EPA. EPA 
is available to participate in discussions with right holders and 
states on this issue.
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    \58\ NEJAC Fish Consumption report, at p. 49.
    \59\ EPA provides guidance on determining unsuppressed fish 
consumption rates. See USEPA. 2016. Guidance for Conducting Fish 
Consumption Surveys. EPA-823B16002.
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    EPA requests comment on whether additional language should be 
included in the final rule specifying the considerations for 
determining unsuppressed WQS.
iii. Protecting Right Holders to the Same Risk Level as the General 
Population
    Additionally, proposed 40 CFR 131.9(a)(2) would require that the 
health of right holders be protected to at least the same risk level as 
the general population of the state would have been protected, had the 
general population been the ``target population'' for water quality 
protections in the waters at issue. EPA anticipates the primary 
application of this provision to be in using a cancer risk level 
appropriate for a general population (i.e., at least 10-5 
along with a fish consumption rate that reflects the reserved right, as 
discussed above, for the purpose of calculating human health criteria. 
EPA requests comment on whether there may be other situations where 
this provision could apply.
    Under EPA's 2000 Methodology, a key step in deriving human health 
criteria is identifying the population subgroup that the criteria 
should protect. The 2000 Methodology explains that states and 
authorized tribes could set criteria to protect individuals with 
``average'' or ``typical'' exposure, or to protect more highly exposed 
individuals.\60\ EPA's 304(a) criteria use a combination of median 
values, mean values, and percentile estimates targeted at the high end 
of the general population (i.e., the target population or the criteria-
basis population).\61\ The 2000 Methodology also recommends use of 
conservative exposure parameters to ensure that water quality criteria 
are protective not

[[Page 74370]]

only of the general population, but also of subpopulations who, because 
of high exposure, such as high fish intake rates, have an increased 
risk of receiving a dose that would elicit adverse effects.\62\ With 
respect to carcinogens, the 2000 Methodology states that 
10-\5\ and 10-\6\ risk levels may be acceptable 
for the general population and that highly exposed populations should 
not exceed a 10-\4\ risk level.63 64
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    \60\ USEPA. 2000. Methodology for Deriving Ambient Water Quality 
Criteria for the Protection of Human Health. U.S. Environmental 
Protection Agency, Office of Water, Washington, DC EPA-822-B-00-004. 
https://www.epa.gov/wqc/human-health-water-quality-criteria-and-methods-toxics. p. 2-1.
    \61\ Id.
    \62\ Id. p.1-11.
    \63\ Id. p.2-6.
    \64\ Future iterations of this methodology may make different 
recommendations regarding cancer risk level; the requirement in this 
proposed rulemaking is not tied to a specific cancer risk level 
value, but rather requires that states establish WQS that provide 
the same level of protection between their general populations and 
right holders.
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    EPA's national guidance has not previously addressed, however, how 
tribal reserved rights to aquatic and/or aquatic dependent resources 
should be considered in identifying the target population for deriving 
water quality criteria. Nor has the agency addressed what constitutes 
acceptable risk for tribal members whose exercise of reserved rights 
may put them at greater risk than the general population (e.g., due to 
higher rates of fish consumption). The agency considered whether it 
should treat tribal members exercising reserved rights in the same 
manner as other highly exposed individuals and subpopulations as 
generally laid out in the 2000 Methodology but has decided protection 
of tribal members exercising reserved rights warrants a distinct 
approach. EPA recognizes that treaties, statutes, executive orders, or 
other sources of law establishing reserved rights vary in many respects 
and may or may not themselves speak to right holders' exercising their 
rights relative to a state's general population. Nonetheless, unlike 
other individuals and subpopulations, tribal members exercising 
reserved rights are a distinct, identifiable class of individuals 
holding legal rights to resources, whose reserved rights are unique to 
them and have a defined geographic scope. In EPA's judgment, their 
unique status as right holders warrants treating them as the target 
population for purposes of deriving human health criteria.
    The proposed rulemaking does not dictate what cancer risk level 
must be used in deriving human health water quality criteria for 
carcinogens where there are applicable reserved rights. Instead, 
proposed 40 CFR 131.9(a)(2) requires that WQS protect the health of the 
right holders ``to at least the same risk level as provided to the 
general population of the state.'' EPA's 2000 Methodology recommends 
that states and authorized tribes set human health criteria based on a 
cancer risk level of 10-\5\ or 10-\6\ for the 
target population which, under the proposed rulemaking, would be tribal 
members exercising applicable reserved rights. This approach recognizes 
the special nature of such reserved rights and status of right holders. 
It also helps ensure protection of tribal members whose exposure (and 
consequent risk of adverse effects) may vary. For example, if a state 
or authorized tribe protects the general population at a risk level of 
10-\5\, under the proposed rulemaking they would need to 
adopt the same risk level for tribes exercising reserved rights. The 
state or authorized tribe would also select an appropriate fish 
consumption rate for deriving criteria pursuant to 40 CFR 131.9(a)(1), 
as discussed above.
    In its 2019 decision document reversing its prior disapproval of 
Washington's human health criteria, EPA made the following assertion: 
``[T]he EPA's longstanding view, consistent with the 2000 Methodology, 
is that a state may consider tribes with reserved fishing rights to be 
highly exposed populations, rather than the target general population, 
in order to derive criteria, and that such consideration gives due 
effect to reserved fishing rights.'' \65\ EPA has reconsidered this 
assertion and is proposing to require that WQS protect the health of 
right holders to at least the same risk level as a state's general 
population, rather than treating right holders as a highly exposed 
population. EPA has determined that it is appropriate, in exercising 
its discretion in implementing CWA section 303(c), to give effect to 
reserved rights within the WQS-setting paradigm by requiring that the 
right holders receive protection to at least the same risk level as 
recommended for a state's general population and is accordingly 
proposing the requirement set forth in proposed 40 CFR 131.9(a)(2).
---------------------------------------------------------------------------

    \65\ May 10, 2019 Decision Document. p. 23.
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iv. Implementation of These Proposed Requirements
    EPA anticipates that the circumstances where WQS may need to be 
adjusted to protect tribal reserved rights would fall primarily into 
two categories:
    1. Human health criteria to protect fish consumers, where tribes 
with reserved fishing rights consume more fish and are therefore 
exposed to greater levels of contaminants in fish. This is because 
there is a differential health risk between right holders and the 
general population of the state because right holders are more highly 
exposed to the resource.
    2. Where a reserved right is not already accounted for as a 
designated or presently attained use for a waterbody, but that 
waterbody could be reasonably expected to support that right in the 
future (e.g., if restoration efforts are underway). EPA anticipates 
that this could arise with uses to protect aquatic life, aquatic-
dependent wildlife, and users of those resources, where those uses are 
not already designated or presently attained.
    For many aquatic and aquatic-dependent resources that tribes have 
rights to fish, hunt or gather, the existing Federal WQS regulations 
already require states to provide a level of protection consistent with 
this proposed rulemaking. In accordance with the interim goal specified 
by CWA section 101(a)(2) of ``water quality which provides for the 
protection and propagation of fish, shellfish, and wildlife and 
provides for recreation in and on the water,'' the existing Federal WQS 
regulation requires that state WQS protect fish, shellfish and 
wildlife, and recreation in and on the water, wherever attainable.\66\ 
As a result, states typically designate most of their waters for those 
uses. In addition, the existing WQS regulation at 40 CFR 131.11 
requires that states adopt water quality criteria that protect their 
designated uses. As a result, where a tribe has the right to hunt an 
aquatic-dependent species, for example, the species may already be 
protected in accordance with this proposed rulemaking by a state's 
``wildlife'' designated use and associated criteria, such that this 
rulemaking would not require any additional protection of that species 
beyond what is already required under the CWA and EPA's existing WQS 
regulation.
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    \66\ See 40 CFR 131.6
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    Additionally, if use of an aquatic or aquatic-dependent resource 
pursuant to a tribal reserved right is a use that is presently being 
attained, EPA's existing regulation at 40 CFR 131.10(i) requires states 
to revise their WQS to reflect the presently attained use. For example, 
if a tribe has a right to gather an aquatic plant in a state waterbody 
and that use is presently attained, state WQS should already reflect 
that as a designated use, per 40 CFR 131.10(i), and thus this resource 
should be protected in accordance with proposed 40 CFR 131.9(a), 
discussed further below.
    With respect to aquatic life criteria, EPA provides guidance for 
deriving criteria that generally protect aquatic

[[Page 74371]]

organisms,\67\ including commercially or recreationally important 
species. EPA does not anticipate that more stringent criteria to 
protect aquatic or aquatic-dependent resources themselves would be 
necessary in most cases to comply with this proposed rulemaking than 
already required by the existing Federal WQS regulations.
---------------------------------------------------------------------------

    \67\ USEPA. 1985. Guidelines for Deriving Numerical National 
Water Quality Criteria for the Protection of Aquatic Organisms and 
Their Uses. U.S. Environmental Protection Agency, Office of Water, 
Washington, DC PB85-227049.
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    This proposed rulemaking would complement the existing regulatory 
requirements set forth in EPA's WQS regulation. In certain 
circumstances, these existing requirements may already be operating to 
ensure water quality levels are protective of particular tribal 
reserved rights. By requiring states to seek information regarding 
applicable reserved rights as they review and revise their WQS, the 
proposed requirements would equip states with information to determine 
whether current WQS adequately protect applicable reserved rights.
    EPA's identification of two categories of circumstances where 
compliance with the proposed rulemaking is most likely to necessitate 
new or revised WQS is consistent with input from tribes during pre-
proposal consultation, which focused primarily on protection of fish 
consumers and protection of wild rice.\68\ EPA requests comment on 
whether there are other instances where WQS may need to be adjusted to 
protect tribal reserved rights consistent with this proposed 
rulemaking. This request for comment includes, but is not limited to, 
whether there are tribal reserved rights to aquatic or aquatic-
dependent resources that may require more stringent criteria than 
otherwise required to protect applicable designated uses in order to 
comply with this proposed rulemaking and whether there are differential 
health risks for right holders associated with activities other than 
fish consumption such that new or revised criteria may be necessary to 
comply with this proposed rulemaking.
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    \68\ See USEPA 2021. Summary Report of Tribal Consultation for 
the Proposed Rule: Water Quality Standards Regulatory Revisions to 
Protect Tribal Reserved Rights, available in the docket for this 
proposed rulemaking.
---------------------------------------------------------------------------

    Where information is conflicting, there are gaps in information, 
and/or a difference of opinion exists between the state and one or more 
tribes about the level of water quality necessary to protect a reserved 
right, EPA will take action based on the best available information in 
the same way that EPA currently makes WQS decisions in these 
circumstances in other contexts, e.g., determining whether criteria are 
scientifically defensible in situations where there is conflicting 
science, there are gaps in the science, and/or there are different 
conclusions among stakeholders. EPA requests comment on whether there 
are other factors it should consider when making decisions under these 
circumstances.
3. Options for Establishing WQS To Protect Tribal Reserved Rights
    After determining whether tribal reserved rights apply and the 
level of water quality necessary to protect those rights, states would 
be required to revise their WQS if needed to ensure protection of those 
rights using designated uses, criteria, and/or antidegradation as 
described at proposed 40 CFR 131.9(c).
    The first option is to adopt designated uses that explicitly 
recognize and identify tribal reserved rights to aquatic and/or 
aquatic-dependent resources and water quality criteria to protect those 
uses. For example, a state could adopt a separate designated use of 
``customary and traditional fishing'' and apply it to waterbodies where 
tribes hold reserved rights to fish for subsistence. A state would also 
determine and adopt protective criteria set at the level of water 
quality that was determined to protect the customary and traditional 
fishing designated use. An advantage to establishing designated uses 
that explicitly recognize specific tribal reserved rights is that it is 
a transparent way to identify where those rights apply and how they are 
protected. Designated uses express the desired condition of the water 
and do not need to be currently attained to be designated.\69\ 
Therefore, it would be appropriate and reasonable to recognize and 
identify tribal reserved rights as explicit designated uses to define 
the desired condition for the waters where the rights apply and to then 
determine and adopt protective criteria to define the minimum 
conditions necessary to achieve those objectives. As noted above, if 
use of an aquatic or aquatic-dependent resource pursuant to a tribal 
reserved right is a use that is presently being attained, EPA's 
existing regulation at 40 CFR 131.10(i) requires states to revise their 
WQS to reflect the presently attained use.
---------------------------------------------------------------------------

    \69\ 40 CFR 131.3(f)
---------------------------------------------------------------------------

    As a second option, the state could adopt criteria protective of 
tribal reserved rights and associate those criteria with a current 
designated use that already encompasses the tribal reserved rights. For 
example, a state may have a designated use of ``fishing'' that is 
intended to capture a broad range of fishing activities. In this case, 
it may be reasonable for a state to focus on identifying and 
synthesizing data on fish consumption rates to determine criteria that 
will protect the ``fishing'' use to an extent consistent with the 
reserved right, including ensuring that tribes with reserved fishing 
rights are protected to a level appropriate to protect to the general 
population as outlined in EPA's 2000 Methodology or EPA's latest 
guidance for establishing human health criteria.
    As a third option, the state could use its antidegradation policy 
to protect tribal reserved rights. EPA is seeking public comment on 
whether the following two antidegradation policy options related to 
Tier 2 and Tier 3 could be used to protect tribal reserved rights in 
lieu of the options identified in proposed 40 CFR 131.9(c)(1) and (2) 
and explained earlier in this section. An additional advantage of the 
antidegradation policy options described in the following paragraph is 
that in situations where a waterbody's existing water quality exceeds 
the levels that protect tribal reserved rights, these options would 
provide a mechanism to maintain high water quality and provide a margin 
of safety that would afford the water body increased resilience to 
potential future stressors, including climate change. Protecting such 
high-quality waters would potentially be more cost-effective and 
resource-efficient than investing in long-term restoration or remedial 
actions in the future.
    Option 1: States could assign a water body as an Outstanding 
National Resource Water (ONRW) \70\ which would bring it under 40 CFR 
131.12(a)(3), which requires the water quality of such ONRWs to be 
maintained and protected.
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    \70\ Waters provided the highest level of protection under a 
state's antidegradation policy. EPA Water Quality Standards 
Handbook, Chapter 4: Antidegradation. p.12. EPA-823-B-12-002. 
https://www.epa.gov/sites/default/files/2014-10/documents/handbook-chapter4.pdf.
---------------------------------------------------------------------------

    Option 2: States could amend their antidegradation policy and/or 
other legally binding procedures to include a provision that ensures 
that any lowering of water quality in a high-quality water that is 
authorized by the state, in accordance with 40 CFR 131.12(a)(2), 
results in water quality that continues to protect applicable reserved 
rights.
    EPA is requesting comment on these two options for implementing 
antidegradation requirements to protect tribal reserved rights. EPA is 
also

[[Page 74372]]

requesting comment on alternative ways that states could use their 
antidegradation policies and implementation methods to protect tribal 
reserved rights, as defined in proposed 40 CFR 131.9(a).
    States could also choose to combine these methods, such as by 
assigning ONRW status to a waterbody to prevent any additional lowering 
of water quality, while also establishing a tribal resource designated 
use goal and criteria that must be met to achieve that goal.
    If use of an aquatic or aquatic-dependent resource pursuant to a 
tribal reserved right is an existing use pursuant to 40 CFR 
131.3(e),\71\ EPA's current WQS regulation at 40 CFR 131.12(a)(1) 
requires that the use and the water quality necessary to protect that 
use be maintained and protected. Thus, implementation of 40 CFR 
131.12(a)(1) would protect this resource in accordance with proposed 40 
CFR 131.9(a).
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    \71\ 40 CFR 131.3(e) Existing uses are those uses actually 
attained in the water body on or after November 28, 1975, whether or 
not they are included in the water quality standards.
---------------------------------------------------------------------------

    EPA recognizes that there may be areas where multiple right holders 
hold reserved rights to the same aquatic and/or aquatic-dependent 
resources. In these cases, right holders may have different positions 
on how to ensure the WQS protect the resources, consistent with 
proposed 40 CFR 131.9. Additionally, tribal reserved rights to a 
particular resource may span across multiple states. These situations 
would likely require significant coordination among all parties to 
develop WQS to protect all applicable rights. EPA is available to 
facilitate dialogue between and among states and tribes, where 
appropriate.
4. Use Attainability Analyses and Tribal Reserved Rights
    EPA recognizes that there may be situations where a waterbody may 
not be able to support a reserved right to an aquatic and/or aquatic-
dependent resource because attaining that use in that waterbody is not 
currently feasible. The CWA and EPA's regulations provide that such 
uses could be revised if shown to be unattainable based on one of six 
reasons. However, there may also be situations where it may be critical 
to maintain the designated uses and continue to strive for attainment 
of such uses to protect a tribal reserved right consistent with the 
obligations of treaties and other Federal laws. EPA requests comment on 
whether and how states can revise designated uses, as provided for by 
40 CFR 131.10, while also ensuring the protection of tribal reserved 
rights per proposed 40 CFR 131.9. EPA is not considering modifying the 
existing requirements in 40 CFR 131.10 or otherwise reopening those 
requirements for comment but, rather, is requesting comment only on 
whether any discrete additions to the current regulatory framework may 
be necessary to protect tribal reserved rights. For example, should EPA 
include in 40 CFR 131.9 specifics on whether or how a state can revise 
designated uses and still protect tribal reserved rights?

D. EPA's Role

1. Engagement With States
    EPA makes itself available to engage early and often to provide 
support when states are adopting and revising WQS. EPA support includes 
providing triennial review ``kick off'' letters that outline EPA's 
recommendations for WQS revisions, participating in state public 
processes, and providing comments to states on their proposed WQS. EPA 
intends to support states by providing input and information on any 
tribal reserved rights and the level of water quality to protect those 
rights. As previously mentioned, EPA is also available to facilitate 
dialogue between states and tribes.
2. Consultation With Tribes
    As mentioned in section III.A. of this preamble, any new or revised 
WQS must be submitted to EPA for review and approval or disapproval to 
determine whether it meets CWA and corresponding EPA regulatory 
requirements (CWA section 303(c)(2)(A) and (c)(3); 40 CFR 131.5; 
131.21). EPA's policy \72\ is to consult on a government-to-government 
basis with tribes when EPA actions and decisions such as WQS actions 
may affect tribal interests. Accordingly, in addition to early 
engagement with right holders in the development of new or revised WQS, 
EPA will also consult with right holders as it reviews relevant state 
WQS submissions. EPA intends to codify in proposed 40 CFR 131.9(b) that 
EPA would initiate consultation with the right holders on state WQS 
submissions in determining whether applicable reserved rights are 
protected. This consultation will inform EPA's determination pursuant 
to 40 CFR 131.5(a)(9) as to whether WQS protect tribal reserved rights, 
where applicable.
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    \72\ USEPA 2011. EPA Policy on Consultation and Coordination 
with Indian Tribes. (see https://www.epa.gov/sites/default/files/2013-08/documents/cons-and-coord-with-indian-tribes-policy.pdf)
    USEPA 2016. EPA Policy on Consultation and Coordination with 
Indian Tribes: Guidance for Discussing Tribal Treaty Rights. https://www.epa.gov/tribal/tribal-treaty-rights;
    Executive Order 13175, Consultation and Coordination with Indian 
Tribal Governments (see https://www.federalregister.gov/documents/2000/11/09/00-29003/consultation-and-coordination-with-indian-tribal-governments);
    January 26, 2021 Presidential Memorandum on Tribal Consultation 
and Strengthening Nation-to-Nation Relationships (see https://www.whitehouse.gov/briefing-room/presidential-actions/2021/01/26/memorandum-on-tribal-consultation-and-strengthening-nation-to-nation-relationships/).
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    EPA defines consultation in its 2011 Policy on Consultation and 
Coordination with Tribes \73\ as ``a process of meaningful 
communication and coordination between EPA and tribal officials prior 
to EPA taking actions or implementing decisions that may affect 
tribes.'' As a process, consultation includes several methods of 
interaction that may occur at different levels. The appropriate level 
of interaction is determined by past and current practices, policy 
adjustments, the continuing dialogue between EPA and tribal 
governments, and program and regional office consultation procedures 
and plans.
---------------------------------------------------------------------------

    \73\ USEPA 2011. EPA Policy on Consultation and Coordination 
with Indian Tribes. (see https://www.epa.gov/sites/default/files/2013-08/documents/cons-and-coord-with-indian-tribes-policy.pdf)
---------------------------------------------------------------------------

    Under proposed 40 CFR 131.9(b), EPA would seek information and 
input regarding applicable tribal reserved rights in accordance with 
the 2011 EPA Policy on Consultation and Coordination with Tribes, the 
2016 EPA Policy on Consultation and Coordination with Indian Tribes: 
Guidance for Discussing Tribal Treaty Rights,\74\ applicable EPA 
regional consultation procedures,\75\ and any other applicable EPA 
tribal consultation policies in effect when the proposed rulemaking 
would be applied. Although proposed 40 CFR 131.9(b) would specifically 
apply to EPA's review of state WQS submissions, EPA intends per its 
2011 Policy on Consultation and Coordination with Tribes, the 2016 EPA 
Policy on Consultation and Coordination with Indian Tribes: Guidance 
for Discussing Tribal Treaty Rights,\76\ and applicable EPA regional 
consultation procedures, to initiate consultation with tribes in the 
geographic area where any WQS decision under EPA's consideration may 
affect tribal interests, including reserved rights. EPA would consider 
all relevant

[[Page 74373]]

information obtained through consultation to help ensure that the 
agency is fully informed before taking a WQS action.
---------------------------------------------------------------------------

    \74\ Available online at https://www.epa.gov/tribal/epa-policy-consultation-and-coordination-indian-tribes-guidance-discussing-
tribal-treaty.
    \75\ Available online at https://www.epa.gov/tribal/forms/consultation-and-coordination-tribes.
    \76\ Available online at https://www.epa.gov/tribal/epa-policy-consultation-and-coordination-indian-tribes-guidance-discussing-
tribal-treaty.
---------------------------------------------------------------------------

    EPA would attempt to honor consultation requests from tribal 
governments considering the nature of the activity, past consultation 
efforts, available resources, timing considerations, and all other 
relevant factors. EPA would generally agree to consult when such a 
request for consultation is made by a tribal government, assuming the 
proposed action may affect that tribe.

E. How would the proposed regulatory revisions apply to States in the 
Great Lakes system?

    During pre-proposal tribal consultation and coordination, some 
tribes questioned whether 40 CFR part 132, Water Quality Guidance for 
the Great Lakes System, which identifies minimum WQS for the Great 
Lakes System to protect human health, aquatic life, and wildlife, may 
limit the ability of states subject to this regulation, once finalized, 
to revise their WQS to protect tribal reserved rights. 40 CFR part 132 
allows for greater levels of protection than specified in the 
regulation. For example, 40 CFR 132.4(i) provides that, ``[n]othing in 
this part shall prohibit the Great Lakes States and Tribes from 
adopting numeric water quality criteria, narrative criteria, or water 
quality values that are more stringent than'' the criteria and values 
derived using the methodologies specified in 40 CFR part 132. 
Therefore, 40 CFR part 132 does not limit the ability of states subject 
to its requirements to revise their WQS to be more stringent if 
necessary to protect tribal reserved rights. In addition, for waters in 
the Great Lakes basin, states must meet the requirements of both 40 CFR 
parts 131 and 132. Where regulations in 40 CFR parts 131 and 132 
overlap, the more stringent regulation applies.
    For these reasons, revisions to 40 CFR part 132 are not necessary 
to protect tribal reserved rights.

F. Role of Other WQS Provisions in Protecting Tribal Reserved Rights

    EPA requests comment on whether EPA should specify in 40 CFR 131.9 
how other WQS provisions, such as general policies under 40 CFR 131.13, 
WQS variances under 40 CFR 131.14, and permit compliance schedules 
under 40 CFR 131.15, should be used to ensure protection of tribal 
reserved rights. EPA is not proposing to modify the existing language 
in these sections and is not reopening them for comment. Rather, EPA is 
considering whether potential discrete additions to the current 
regulatory scheme set forth in this rule may be necessary. For example, 
just as the agency has outlined options for designated use revisions, 
criteria revisions and use of state antidegradation policies, should 
EPA include in 40 CFR 131.9 specifics on whether or how a state can 
adopt a WQS variance and still protect tribal reserved rights?

V. Economic Analysis

    Pursuant to Executive Orders 12866 (Regulatory Planning and Review) 
and 13563 (Improving Regulation and Regulatory Review), EPA has 
prepared an economic analysis to inform the public of potential costs 
and benefits of this proposed rulemaking. This analysis is not required 
by the CWA. EPA's economic analysis is documented in Economic Analysis 
for Water Quality Standards Regulatory Revisions to Protect Tribal 
Reserved Rights (Proposed Rule) and can be found in the docket for this 
proposal.
    EPA evaluated the potential incremental administrative burdens and 
costs that may be associated with this proposal, beyond the burden and 
costs associated with implementation of the current WQS regulation. 
This proposal would not establish any requirements directly applicable 
to regulated entities, such as industrial dischargers or municipal 
wastewater treatment facilities, but could ultimately lead to 
additional compliance costs to meet permit limits put in place to 
comply with new WQS adopted by states because of this proposed 
rulemaking. In general, facilities meet water quality-based limits 
through pollution prevention programs, product substitution, altered 
engineering processes, or end-of-pipe treatment. Other aspects of WQS, 
such as variances which facilitate feasible progress toward a less 
stringent interim goal, may mitigate compliance costs. However, because 
of the uncertainty of the specific outcome of application of this 
proposed rulemaking, both in terms of location and pollutants involved, 
EPA is unable to provide estimates of costs to those regulated 
entities. Instead, the focus of EPA's economic analysis is to estimate 
the potential administrative burden and costs to state governments. EPA 
does not anticipate this rule would impose any compliance costs on 
territorial governments because EPA is not aware of any federally 
recognized tribes with reserved rights in or downstream of any U.S. 
territory. EPA also does not anticipate costs to authorized tribes \77\ 
because:
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    \77\ An ``authorized tribe'' for the purpose of this rulemaking 
means a tribe authorized for treatment in a manner similar to a 
state (TAS) under Clean Water Act (CWA) Section 518(e).
---------------------------------------------------------------------------

     EPA anticipates that few, if any tribes have reserved 
rights to resources on another tribe's reservation or otherwise under 
the jurisdiction of another tribe. EPA requests comment on whether any 
such situations may exist.
     EPA anticipates that if there are tribes with reserved 
rights to resources under the jurisdiction of a different tribe that is 
an authorized tribe, their interests may align such that any adopted 
WQS would reflect protecting such rights in absence of this proposed 
rulemaking. Should this not be the case, then authorized tribes could 
be subject to similar administrative costs as presented below for 
states.
    EPA also does not anticipate that this proposed rulemaking would 
directly impose costs to right holders because it does not impose any 
requirements on right holders. EPA acknowledges that the proposed 
requirement to evaluate whether WQS protect relevant tribal reserved 
rights, as informed by the right holders, may lead to increased 
information-sharing among states, right-holders, and EPA. However, the 
proposed rulemaking would not require any additional coordination 
beyond that which already occurs in connection with WQS public 
participation processes and EPA's consultations with tribal 
governments. EPA has, on occasion, provided funding to tribes to 
develop tribal fish consumption rates that are used to inform the level 
of water quality necessary to support tribal reserved rights. EPA could 
support similar projects in the future, as appropriate and as funding 
allows. While EPA anticipates that states and EPA would bear the 
majority of the burden for determining the extent of reserved rights 
and water quality necessary to protect those rights, EPA acknowledges 
that some tribes may choose to incur costs, such as legal fees or 
scientific studies to support their position on the scope and nature of 
their rights and/or water quality necessary to protect them.
    EPA assessed the potential incremental burden and costs associated 
with these proposed regulatory revisions on states by first identifying 
those elements of the proposed revisions that may impose incremental 
burdens and costs. Then, EPA estimated the incremental number of labor 
hours potentially required by states to comply with those elements of 
the proposed

[[Page 74374]]

regulatory revisions, and then estimated the costs associated with 
those additional labor hours.
    EPA assumed for the purpose of this analysis that all 50 states 
would each undertake three WQS rulemakings to protect tribal reserved 
rights. The agency assumed one rulemaking for each of the following 
purposes:
     To evaluate or revise WQS for protection of human health;
     To evaluate or revise WQS for protection of aquatic life; 
and
     To account for any other WQS changes needed to protect 
tribal reserved rights, including addressing the emergence of any 
information in the future that informs either the applicability of the 
reserved rights or the necessary level of water quality.
    EPA assumed incremental burden and costs for all 50 states, 
although it is likely that tribal reserved rights to aquatic and/or 
aquatic-dependent resources do not exist in all 50 states. EPA 
considered the costs associated with labor from economists, engineers, 
scientists, and lawyers for development of state regulations. EPA did 
not include any labor or other costs associated with potential 
litigation of state regulations as this would not be a direct 
consequence of this proposed rulemaking and would be highly 
speculative. Estimates of the incremental administrative burden and 
costs to state governments associated with this proposal are summarized 
in the following Table 2:

                       Table 2--Summary of Potential Administrative Burdens and Costs to States Associated With the Proposed Rule
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                           Number of
                                                 Burden per     Cost per State (2020$)    potentially     Total burden (hours)   Total cost (2020$; one-
            Rulemaking effort \1\               State (hours)            \2\               affected               \4\                   time) \5\
                                                                                          States \3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Rulemaking #1................................         100-500           $7,465-$37,325              50             5,000-25,000      $373,250-$1,866,250
Rulemaking #2................................          90-450             6,718-33,592              50             4,500-22,500        335,925-1,679,625
Rulemaking #3................................          75-375             5,599-27,994              50             3,750-18,750        279,938-1,399,688
Total \7\....................................       265-1,325            19,782-98,911              50            13,250-66,250        989,112-4,945,562
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Reflects potential new or increased rulemaking activities to adopt provisions consistent with the proposed rulemaking into WQS.
\2\ Hours per state multiplied by average hourly labor rate of $74.65 and rounded to the nearest dollar.
\3\ Includes 50 states, but no territories or tribes.
\4\ Burden per state multiplied by total number of potentially affected states.
\5\ Total burden for all potentially affected states multiplied by average hourly labor rate of $74.65 and rounded to the nearest dollar.

    Total one-time costs for this proposal are estimated to range from 
$989,112 to $4,945,562. EPA chose not to annualize these costs given 
uncertainty about the period over which that annualization would occur.
    In addition to estimating potential burden and costs, EPA also 
evaluated the potential benefits associated with this proposal. While 
this rulemaking would not directly lead to improvements in water 
quality, if finalized, this rulemaking would establish a framework that 
would encourage future improvements in water quality in geographic 
areas where tribes hold reserved rights. EPA anticipates that the 
proposed rulemaking will enhance the ability of states and tribes to 
protect their water resources by clarifying and prescribing how to 
protect waters with applicable tribal reserved rights and improving 
coordination between Federal, state, and tribal governments. Tribal 
members and the general public may indirectly benefit from this 
rulemaking through targeted improvements to water quality that are 
implemented to meet more stringent state WQS adopted in accordance with 
this rulemaking.
    EPA acknowledges that achievement of any benefits associated with 
cleaner water would involve additional control measures, and thus costs 
to regulated entities and nonpoint sources, that have not been included 
in the economic analysis for this proposed rulemaking. EPA has not 
attempted to quantify either the costs of control measures that might 
ultimately be required as a result of this rulemaking, or the benefits 
they would provide. However, better protection of tribal reserved 
rights has the potential to provide a variety of economic benefits 
associated with cleaner water.
    The primary benefits of the proposed rulemaking for reserved right 
holders would likely be improved ability to maintain traditions and 
cultural landscapes and reduced risk to human health. Reducing 
pollutant levels so that traditional foods such as fish and wild rice 
are abundant and safe to eat in subsistence quantities allows for 
unsuppressed levels of tribal subsistence consumption of these 
resources, which in turn contributes to restoring and maintaining 
traditional lifeways, preserving indigenous knowledge, and cultural 
self-determination. The recognition of tribal reserved rights can also 
lead to direct economic benefits to tribal members. For example, a 1974 
court decision allocating 50% of the Columbia River salmon and 
steelhead catch to the tribes with reserved rights to this resource 
resulted in a near doubling of revenue for these tribes.\78\ This 
rulemaking seeks to ensure that water quality does not limit right 
holders' ability to utilize their rights, and therefore achieve the 
corresponding economic and social benefits.
---------------------------------------------------------------------------

    \78\ Parker, D.P., Rucker, R.R., & Nickerson, P.H. (2016). The 
Legacy of United States v. Washington: Economic Effects of the Boldt 
and Rafeedie Decisions. In Unlocking the Wealth of Indian Nations, 
ed. T.L. Anderson, Rowman and Littlefield Press.
---------------------------------------------------------------------------

    Other potential benefits include the availability of clean, safe, 
and affordable drinking water, greater recreational opportunities, 
water of adequate quality for agricultural and industrial use, and 
water quality that supports the commercial fishing industry and higher 
property values. These benefits could accrue to both tribal and 
nontribal populations.
    As mentioned above, this proposal does not establish any 
requirements directly applicable to regulated point sources or nonpoint 
sources of pollution, although EPA recognizes that these sources could 
potentially incur future costs as a result of changes to WQS adopted by 
states as a result of this rulemaking (states could also adopt new or 
revised WQS independent of this proposed rulemaking). However, this 
proposal does not lend itself to identification of readily predictable 
outcomes regarding changes to state WQS that might result. Likewise, 
EPA could not predict requirements that could ultimately be imposed on 
NPDES permittees and nonpoint sources. Thus, EPA has not analyzed 
potential costs or

[[Page 74375]]

cost savings associated with any consequences of potential revised 
state WQS.
    EPA seeks comment on all aspects of the accompanying economic 
analysis.

VI. Statutory and Executive Order Reviews

    Additional information about these statutes and Executive Orders 
can be found at http://www.epa.gov/laws-regulations/laws-and-executive-orders.

A. Executive Order 12866: Regulatory Planning and Review and Executive 
Order 13563: Improving Regulation and Regulatory Review

    This action is a significant regulatory action that was submitted 
to the Office of Management and Budget (OMB) for review. Any changes 
made in response to OMB recommendations have been documented in the 
docket.
    EPA prepared an analysis of the potential costs and benefits 
associated with this action. This analysis is summarized in section V 
of the preamble and is available in the docket.

B. Paperwork Reduction Act (PRA)

    The information collection requirements in this proposed rule have 
been submitted for approval to the OMB under the Paperwork Reduction 
Act, 44 U.S.C. 3501 et seq. The Information Collection Request (ICR) 
document prepared by EPA has been assigned EPA ICR number 2700.01. You 
can find a copy of the ICR in the docket for this rule, and it is 
briefly summarized here. The information collection requirements in 
this proposed rule will be in addition to requirements described in the 
existing ICR for the Water Quality Standards Regulation and approved by 
OMB through February 2025.\79\ At this time EPA is not proposing to 
revise the existing ICR to consolidate the requirements of this 
proposed rule. EPA intends to do so when it requests renewal of the 
existing ICR in 2025.
---------------------------------------------------------------------------

    \79\ ``Information Collection Request for Water Quality 
Standards Regulation,'' OMB Control Number 2040-0049, EPA ICR Number 
0988.15, expiration date February 28, 2025.
---------------------------------------------------------------------------

    EPA would use the information required by this proposed rule to 
carry out its responsibilities under the CWA to review and approve or 
disapprove new and revised WQS submitted by states. In reviewing state 
WQS submissions, EPA considers whether those submissions are consistent 
with the WQS regulation at 40 CFR part 131. The current regulation 
requires states to include supporting information to accompany WQS 
submissions to help EPA determine whether the submitted new and revised 
WQS are consistent with 40 CFR part 131. This proposed rule would add a 
new requirement to 40 CFR part 131 to require, where applicable, that 
state WQS submissions provide additional supporting information about 
whether the submitted WQS protect tribal reserved rights, including 
information about the scope, nature, and current and past use of the 
tribal reserved rights, and data and methods used to develop the WQS. 
This mandatory information collection would provide EPA with 
information necessary to review and approve or disapprove standards in 
accordance with the CWA, 40 CFR part 131, and other Federal laws.
    If the information collection activities in this proposed 
rulemaking are not carried out, states and EPA may not be able to 
ensure that WQS comply with treaties and other Federal laws. In some 
cases, this could result in implementation and control steps such as 
TMDLs and NPDES permits that also do not comply with treaties and other 
Federal laws.
    Respondents/affected entities: states, territories, and tribes 
authorized for treatment in a manner similar to a state for purposes of 
establishing WQS under the CWA. While tribal right holders would not be 
direct respondents, EPA acknowledges that the proposed regulation would 
require that state submissions be informed by the right holders. EPA 
believes this would not lead to increased burden on right holders 
because the proposed rule would not require additional coordination 
beyond that which already occurs during WQS public participation 
processes and EPA's consultations with tribal governments. EPA requests 
comment on this conclusion.
    Respondent's obligation to respond: mandatory.
    Estimated number of respondents: 50.
    Frequency of response: on occasion/as necessary.
    Total estimated burden: 13,250-66,250 hours. Burden is defined at 5 
CFR 1320.3(b).
    Total estimated labor cost: $989,112-$4,945,562 one-time costs (not 
annualized).
    An agency may not conduct or sponsor, and a person is not required 
to respond to, a collection of information unless it displays a 
currently valid OMB control number. The OMB control numbers for EPA's 
regulations in 40 CFR are listed in 40 CFR part 9.
    Submit your comments on the Agency's need for this information, the 
accuracy of the provided burden estimates and any suggested methods for 
minimizing respondent burden to the EPA using the docket identified at 
the beginning of this rule. You may also send your ICR-related comments 
to OMB's Office of Information and Regulatory Affairs using the 
interface at www.reginfo.gov/public/do/PRAMain. Find this particular 
information collection by selecting ``Currently under Review-- Open for 
Public Comments'' or by using the search function. OMB must receive 
comments no later than February 3, 2023. EPA will respond to any ICR-
related comments in the final rule.

C. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic 
impact on a substantial number of small entities under the Regulatory 
Flexibility Act. This action will not impose any requirements on small 
entities. Small entities are not directly regulated by this rule and 
this action will not impose any requirements on small entities; rather, 
this action will impose requirements only on states to take into 
consideration how their WQS must protect aquatic and aquatic-dependent 
resources reserved to tribes through treaties, statutes, Executive 
orders, or other sources of Federal law.

D. Unfunded Mandates Reform Act (UMRA)

    This action does not contain any unfunded mandate as described in 
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect 
small governments. The action imposes no enforceable duty on any state, 
local or tribal governments or the private sector.

E. Executive Order 13132: Federalism

    EPA has concluded that this action does not have federalism 
implications. It will not have substantial direct effects on the 
states, on the relationship between the national government and the 
states, or on the distribution of power and responsibilities among the 
various levels of government. This rule would clarify and prescribe how 
WQS for a state's waters must protect aquatic and aquatic-dependent 
resources reserved to tribes through treaties, statutes, Executive 
orders, or other sources of Federal law. States continue to have 
considerable discretion in adopting and implementing WQS. Thus, 
Executive Order 13132 does not apply to this action.
    In the spirit of Executive Order 13132 and consistent with EPA's 
policy to promote communications between EPA and state and local 
governments, EPA provided a conceptual overview of the draft rule for 
the Association of Clean Water Agencies (ACWA)'s Monitoring, Standards 
and Assessment

[[Page 74376]]

Subcommittee, and during three additional one-on-one meetings with 
individual states held upon request.\80\ In these discussions states 
requested additional clarification about EPA's expectations for how 
they should determine where tribal reserved rights apply, what 
resources and tools will be available, e.g., geospatial data, and how 
to handle situations where data are not available, the state and tribe 
disagree, or multiple tribes have overlapping rights and do not agree 
on the level of protection. EPA took these discussions into account 
during the drafting of this rule. EPA specifically solicits comments on 
this proposed action from state and local officials.
---------------------------------------------------------------------------

    \80\ The slides EPA presented at its meeting with ACWA are 
included in the docket for this rulemaking. These are representative 
of the slides EPA presented at its one-on-one meetings with states.
---------------------------------------------------------------------------

    After publishing this proposed rulemaking, EPA will conduct 
additional outreach and engagement with state and local government 
officials, or their representative national organizations, prior to 
finalizing a rule. All comment letters and recommendations received by 
EPA during the comment period from state and local governments will be 
included in the proposed rulemaking docket (Docket ID No. EPA-HQ-OW-
2021-0791).

F. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action has tribal implications, however it will neither impose 
substantial direct compliance costs on federally recognized tribal 
governments, nor preempt tribal law. This rulemaking may affect tribes 
with reserved rights to aquatic and/or aquatic-dependent resources in 
waters subject to state WQS, and it may also affect tribes 
administering a CWA 303 WQS program. As of November 15, 2022, 80 Indian 
tribes have been approved for treatment in a manner similar to a state 
(TAS) for CWA sections 303 and 401.\81\ All or some of these authorized 
tribes could be subject to this proposed rule, depending on the 
location and nature of any other tribes' downstream rights.
---------------------------------------------------------------------------

    \81\ For the most current information please refer to https://www.epa.gov/wqs-tech/epa-actions-tribal-water-quality-standards-and-contacts.
---------------------------------------------------------------------------

    EPA consulted with tribal officials early in the process of 
developing this regulation to permit them to have meaningful and timely 
input into its development. EPA held a 90-day tribal consultation and 
coordination period from June 15 through September 13, 2021 with 
federally recognized tribes to inform development of the proposed rule. 
EPA conducted the consultation and coordination process in accordance 
with the EPA Policy on Consultation and Coordination with Indian Tribes 
(https://www.epa.gov/tribal/epa-policy-consultation-and-coordination-indian-tribes). In addition to two national tribal listening sessions 
held in July and August 2021, EPA presented at 20 meetings of tribal 
staff and leadership, as well as held seven staff-level coordination/
engagement meetings and held seven leader-to-leader meetings at the 
request of tribes. EPA continued outreach and engagement with tribes at 
national and regional tribal meetings after the end of the consultation 
period. Nearly all commenters were supportive of the potential rule in 
concept. EPA considered all pre-proposal tribal input received as it 
developed the proposed rule.
    A summary of that consultation (``Summary of EPA's Pre-Proposal 
Consultation, Coordination, and Outreach with Federally Recognized 
Tribes on Potential Revisions to the Federal Water Quality Standards 
Regulation to Protect Tribal Reserved Rights'') is available in the 
docket for this proposal.

G. Executive Order 13045: Protection of Children From Environmental 
Health and Safety Risks

    This action is not subject to Executive Order 13045 because it is 
not economically significant as defined in E.O. 12866, and because it 
does not concern an environmental health risk or safety risk that may 
disproportionately affect children.

H. Executive Order 13211: Actions That Significantly Affect Energy 
Supply, Distribution, or Use

    This action is not a ``significant energy action'' because it is 
not likely to have a significant adverse effect on the supply, 
distribution or use of energy. This action impacts state and tribal 
water quality standards, which do not regulate the supply, 
distribution, or use of energy.

I. National Technology Transfer and Advancement Act of 1995

    This proposed rulemaking does not involve technical standards.

J. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    For the reasons explained below, EPA concludes that this action 
does not have disproportionately high and adverse human health or 
environmental effects on minority populations, low-income populations 
and/or indigenous peoples, as specified in Executive Order 12898 (59 FR 
7629, February 16, 1994). Instead, EPA believes that this rule will 
address some of the many disproportionate impacts to tribal 
communities.
    EPA defines Environmental Justice (EJ) as the fair treatment and 
meaningful involvement of all people regardless of race, color, 
national origin, or income with respect to the development, 
implementation and enforcement of environmental laws, regulations and 
policies.\82\ Three Executive Orders (E.O. 12898 \83\, 13985 \84\ and 
14008 \85\) advance EJ by calling on Federal agencies to identify and 
address disproportionate impacts on historically underserved, 
marginalized, and economically disadvantaged people. Additionally, EPA 
has expressed a commitment to conducting EJ analyses for rulemakings as 
described in the April 30, 2021, revisions to the Cross-State Air 
Pollution Rule (CSAPR).\86\ This rule is

[[Page 74377]]

consistent with EPA's strategic goal of advancing EJ.\87\
---------------------------------------------------------------------------

    \82\ Fair treatment means that ``no group of people should bear 
a disproportionate burden of environmental harms and risks, 
including those resulting from the negative environmental 
consequences of industrial, governmental and commercial operations 
or programs and policies.'' Meaningful involvement occurs when ``(1) 
potentially affected populations have an appropriate opportunity to 
participate in decisions about a proposed activity [e.g., 
rulemaking] that will affect their environment and/or health; (2) 
the public's contribution can influence [the EPA's rulemaking] 
decision; (3) the concerns of all participants involved will be 
considered in the decision-making process; and (4) [the EPA will] 
seek out and facilitate the involvement of those potentially 
affected.'' A potential EJ concern is defined as ``the actual or 
potential lack of fair treatment or meaningful involvement of 
minority populations, low-income populations, tribes, and tribal 
peoples in the development, implementation and enforcement of 
environmental laws, regulations and policies.'' See ``Guidance on 
Considering Environmental Justice During the Development of an 
Action.'' Environmental Protection Agency, www.epa.gov/environmentaljustice/guidanceconsidering-environmental-justice-duringdevelopment-action. See also https://www.epa.gov/environmentaljustice.
    \83\ Federal Actions to Address Environmental Justice in 
Minority Populations and Low-Income Populations. Available at 
https://www.epa.gov/environmentaljustice/federal-actions-address-environmental-justice-minority-populations-and-low.
    \84\ Advancing Racial Equity and Support for Underserved 
Communities Through the Federal Government. Available at https://www.federalregister.gov/documents/2021/01/25/2021-01753/advancing-racial-equity-and-support-for-underserved-communities-through-the-federal-government.
    \85\ Tackling the Climate Crisis at Home and Abroad. Available 
at https://www.federalregister.gov/documents/2021/02/01/2021-02177/tackling-the-climate-crisis-at-home-and-abroad.
    \86\ 86 FR 23054, 23162 (April 30, 2021) (``Going forward, EPA 
is committed to conducting environmental justice analysis for 
rulemakings based on a framework similar to what is outlined here, 
in addition to investigating ways to further weave environmental 
justice into the fabric of the rulemaking process including through 
enhanced meaningful engagement with environmental justice 
communities.'').
    \87\ FY2022-2026 EPA Strategic Plan. Available online at https://www.epa.gov/planandbudget/strategicplan.
---------------------------------------------------------------------------

    Environmental impacts to tribes may be considered under the 
category of EJ in recognition that tribes may at times be more 
susceptible to impacts from environmental degradation. In addition, 
E.O. 12898 directs Federal agencies, as appropriate and practical, to 
evaluate and communicate the risks associated with consumption patterns 
for populations that rely on fish and/or wildlife for subsistence. 
There is a unique set of EJ considerations for tribes, particularly 
where tribes are exercising their cultural practices, both on and off 
their reservations. For EPA, the government-to-government relationship 
and trust responsibility that the Federal government has with federally 
recognized tribal governments further sets EJ issues for tribes apart 
from those in other communities.\88\
---------------------------------------------------------------------------

    \88\ EPA recognizes our responsibility to work with both 
federally recognized tribes and all other indigenous peoples, per 
the EPA Policy on Environmental Justice for Working with Federally 
Recognized Tribes and Indigenous Peoples (2014) (available online at 
https://www.epa.gov/environmentaljustice/epa-policy-environmental-justice-working-federally-recognized-tribes-and) to address their EJ 
concerns. As defined in the policy, Indigenous Peoples ``includes 
state-recognized tribes; indigenous and tribal community-based 
organizations; individual members of federally recognized tribes, 
including those living on a different reservation or living outside 
Indian country; individual members of state-recognized tribes; 
Native Hawaiians; Native Pacific Islanders; and individual Native 
Americans.''
---------------------------------------------------------------------------

    EPA and other Federal agencies focus on resolving EJ issues 
affecting tribes through (1) supporting the tribes' sovereignty and 
exercise of their own environmental authorities and (2) taking direct 
action on behalf of the tribes as part of the Federal government's 
tribal trust responsibility. This proposed rulemaking is relying on a 
combination of both approaches, as discussed below.
    Many tribes rely on aquatic and aquatic-dependent resources for 
their lifeways. Attaining and sustaining clean water to protect human 
health is essential to ensuring tribes can continue to practice these 
traditional lifeways. However, due to water quality issues, many tribes 
are unable to do so. The contamination of aquatic food resources above 
levels safe to consume in desired quantities results in what is often 
described as a suppression effect. An illustration of a suppression 
effect is when the fish consumption rate for a given tribe reflects a 
current level of consumption that is artificially diminished relative 
to the tribe's heritage fish consumption rate.89 90 91
---------------------------------------------------------------------------

    \89\ National Environmental Justice Advisory Council (NEJAC). 
2002. Fish Consumption and Environmental Justice. https://www.epa.gov/sites/default/files/2015-02/documents/fish-consump-report_1102.pdf. p. vii.
    \90\ EPA. 2016. Idaho Tribal Fish Consumption Survey. https://www.epa.gov/columbiariver/idaho-tribal-fish-consumption-survey.
    \91\ Northwest Indian Fisheries Commission, 2019. Opposition to 
EPA's 2019 Actions to Roll Back Washington's Human Health Water 
Quality Criteria, Docket No. EPA-HQ-OW-2015-0174. Available online 
at https://www.regulations.gov/comment/EPA-HQ-OW-2015-0174-0970.
---------------------------------------------------------------------------

    The negative impacts of suppression extend well beyond tribal 
health, leading to consequences for tribal economies and cultures as 
well. Given that aquatic resources often support a tribe's cultural 
self-determination and can be pivotal to the economic well-being of the 
community, impacts to these resources can affect the very foundation of 
tribal social and political organization,\92\ as well as impact a 
tribe's ability to provide for present and future generations and the 
maintenance of their lifeways.
---------------------------------------------------------------------------

    \92\ Ranco, D.J., O'Neill, C.A., Donatuto, J., & Harper, B.L. 
2011. Environmental Justice, American Indians and the Cultural 
Dilemma: Developing Environmental Management for Tribal Health and 
Well-being. Environmental Justice 4;4, DOI: 10.1089/env.2010.0036.
---------------------------------------------------------------------------

    Tribes have a unique legal and political status, and environmental 
issues affecting tribes must be viewed in the context of tribal 
sovereignty. In giving reserved rights an explicit role in CWA 
regulations, EPA's goal is to support tribal sovereignty. The proposed 
rulemaking recognizes how critical reserved rights are for many tribes' 
cultural and economic survival by providing a platform for states and 
EPA to consider the nature and scope of the very rights that tribes 
have reserved to themselves and have been enshrined in legal 
instruments.
    Tribes, unlike other communities with EJ concerns, cannot be viewed 
as subpopulations, differentiated only by exposures and other 
vulnerabilities. Tribal communities' relationship with their resources 
is unique and should be understood in terms of both the past and 
present relationship the particular tribal communities have with these 
resources and their dependence on those resources. Impacts to tribal 
communities may be disproportionate by definition because of their 
unique relationship to the environment.\93\ It is often the resource 
base that provides for their cultural self-determination and can be 
pivotal to the economic well-being of the community. Indeed, many of 
the reserved rights expressly include subsistence and economic 
components.\94\ Impacts to their resource base could affect the very 
foundation of their tribal social and political organization,\95\ as 
well as impact their ability to provide for present and future 
generations and the maintenance of their lifeways.
---------------------------------------------------------------------------

    \93\ Suagee, D.B. (2003). Environmental Justice and Indian 
Country. Human Rights, Vol. 30, No. 4, p.16-17.
    \94\ Lac Courte Oreilles Band of Lake Superior Chippewa Indians 
v. Wisconsin, 758 F. Supp. 1262 (W.D. Wisc. 1991).
    \95\ Ranco, D.J., O'Neill, C.A., Donatuto, J., & Harper, B.L. 
(2011). Environmental Justice, American Indians and the Cultural 
Dilemma: Developing Environmental Management for Tribal Health and 
Well-being. Environmental Justice 4;4, DOI: 10.1089/env.2010.0036.
---------------------------------------------------------------------------

    This proposed rulemaking's emphasis on treating the applicable 
tribe or tribes as the target population speaks to this unique status. 
And the goal of protecting treaty resources that may not be otherwise 
fully protected under the CWA may indeed have a subsistence and an 
economic component. Further, the concept of addressing suppression, as 
described in section IV.C.2.ii. of this preamble, takes on a unique 
approach where tribal members are concerned by examining not only the 
current context but may also look at historical and cultural practices 
to establish the appropriate baseline. Many tribes have continued their 
traditional practices and/or seek to return to those practices, yet 
they may have also developed new approaches and relationships to their 
resource base. Both contexts should be considered in furthering the 
goal of protecting resources for which tribes have reserved rights.
    The role these resources play in tribal communities can be complex. 
Understanding which resources, how they may be used, and in what 
quantities, is essential in protecting tribal sovereignty and the 
cultural and economic survival of tribal communities. And each tribe 
will likely have a very different set of values and relationships with 
the resources, which may be different world views from those of the 
surrounding community, and from state and local governments.\96\ 
Successful implementation of this proposed rulemaking therefore 
necessitates close coordination with tribes and a greater understanding 
of the unique approaches that tribes may have toward managing their 
resources. The foundation of this coordination in this

[[Page 74378]]

WQS context necessarily includes the state, with CWA authority to set 
standards in the reserved rights areas in question, local governments, 
who often have even more direct contact with tribal members and their 
governments, tribes holding those rights, and the Federal government. 
This proposed rulemaking recognizes the importance of coordination with 
tribes by establishing an express mechanism for tribal input in the 
state WQS setting process.
---------------------------------------------------------------------------

    \96\ Ranco, D.J., O'Neill, C.A., Donatuto, J., & Harper, B.L. 
(2011). Environmental Justice, American Indians and the Cultural 
Dilemma: Developing Environmental Management for Tribal Health and 
Well-being. Environmental Justice 4;4, DOI: 10.1089/env.2010.0036
---------------------------------------------------------------------------

    Reaching consensus can pose challenges, particularly given the 
deep-seated sense of stewardship and responsibility tribes often feel 
toward these resources even when under the jurisdiction of the state. 
But it is often when tribal resources are not under the jurisdiction of 
the tribes themselves that tribes see the biggest environmental justice 
impacts.\97\ It is EPA's goal that the sovereignty and management role 
of both state and tribal governments will be better understood and 
aligned through implementation of this rulemaking.
---------------------------------------------------------------------------

    \97\ Id
---------------------------------------------------------------------------

    EPA recognizes that tribes without federally reserved rights to 
aquatic or aquatic-dependent resources will not be directly impacted by 
this rulemaking. The agency also acknowledges that since this 
rulemaking only covers locations with reserved rights, other aquatic 
resources upon which tribes depend may not be covered. It is EPA's 
expectation that many of the coordination and collaboration processes 
that will be developed to implement this rule will also lead to better 
protection of aquatic and aquatic-dependent resources not referenced in 
treaties and similar instruments because this rulemaking aims to 
facilitate greater coordination between state and tribal governments. 
EPA will continue to work with states and tribes to help reach this 
goal. While this rulemaking does not address all obstacles to the full 
exercise of these rights, EPA believes it takes a positive step in that 
direction.

List of Subjects in 40 CFR Part 131

    Environmental protection, Indians--lands, Intergovernmental 
relations, Reporting and recordkeeping requirements, Water pollution 
control.

Michael S. Regan,
Administrator.
    For the reasons set forth in the preamble, EPA proposes to amend 40 
CFR part 131 as follows:

PART 131--WATER QUALITY STANDARDS

0
1. The authority citation for part 131 continues to read as follows:

    Authority:  33 U.S.C. 1251 et seq.

Subpart A--General Provisions

0
2. Amend Sec.  131.3 by adding paragraphs (r) and (s) to read as 
follows:

Sec.  131.3   Definitions.

* * * * *
    (r) Tribal reserved rights are any rights to aquatic and/or 
aquatic-dependent resources reserved or held by tribes, either 
expressly or implicitly, through treaties, statutes, executive orders, 
or other sources of Federal law.
    (s) Right holders are tribes holding rights to aquatic and/or 
aquatic-dependent resources pursuant to an applicable treaty, statute, 
executive order, or other source of Federal law.
0
3. Amend Sec.  131.5 by adding paragraph (a)(9) and revising paragraph 
(b) to read as follows:

Sec.  131.5   EPA authority.

    (a) * * *
    (9) Whether any State adopted water quality standards protect 
tribal reserved rights, where applicable, consistent with Sec.  131.9.
    (b) If EPA determines that the State's or Tribe's water quality 
standards are consistent with the factors listed in paragraphs (a)(1) 
through (9) of this section, EPA approves the standards. EPA must 
disapprove the State's or Tribe's water quality standards and 
promulgate Federal standards under section 303(c)(4), and for Great 
Lakes States or Great Lakes Tribes under section 118(c)(2)(C) of the 
Act, if State or Tribal adopted standards are not consistent with the 
factors listed in paragraphs (a)(1) through (9) of this section. EPA 
may also promulgate a new or revised standard when necessary to meet 
the requirements of the Act.
* * * * *
0
4. Amend Sec.  131.6 by adding paragraph (g) to read as follows:

Sec.  131.6   Minimum requirements for water quality standards 
submission.

* * * * *
    (g) Where applicable, information which will aid the agency in 
evaluating whether the submission protects tribal reserved rights 
consistent with Sec.  131.9, including:
    (1) Information about the scope, nature, and current and past use 
of the tribal reserved rights, as informed by the right holders; and
    (2) Data and methods used to develop the water quality standards.

Subpart B--Establishment of Water Quality Standards

0
5. Add Sec.  131.9 to subpart B to read as follows:

Sec.  131.9   Protection of tribal reserved rights.

    (a) Water quality standards must protect tribal reserved rights 
applicable to waters subject to such standards. To protect tribal 
reserved rights, water quality standards must, to the extent supported 
by available data and information, be established to protect:
    (1) The exercise of tribal reserved rights unsuppressed by water 
quality or availability of the aquatic or aquatic-dependent resource; 
and
    (2) The health of the right holders to at least the same risk level 
as provided to the general population of the State.
    (b) In reviewing State water quality standards submissions under 
this section, EPA will initiate tribal consultation with the right 
holders, consistent with applicable EPA tribal consultation policies, 
in determining whether State water quality standards protect applicable 
tribal reserved rights in accordance with paragraph (a) of this 
section.
    (c) In order to meet the requirements in paragraph (a) of this 
section, States must:
    (1) Designate uses consistent with Sec.  131.10 that either 
expressly incorporate protection of the tribal reserved rights or 
encompass such rights; and
    (2) Establish water quality criteria consistent with Sec.  131.11 
to protect tribal reserved rights; and/or
    (3) Use applicable antidegradation requirements consistent with 
Sec.  131.12 to maintain and protect water quality that protects tribal 
reserved rights.

Subpart C--Procedures for Review and Revision of Water Quality 
Standards

0
6.Amend Sec.  131.20 by revising paragraph (a) to read as follows:

Sec.  131.20   State review and revision of water quality standards.

    (a) State review. The State shall from time to time, but at least 
once every 3 years, hold public hearings for the purpose of reviewing 
applicable water quality standards adopted pursuant to Sec. Sec.  
131.10 through 131.15 and Federally promulgated water quality standards 
and, as appropriate, modifying and adopting standards. This review 
shall include evaluating whether there are tribal reserved rights 
applicable to State waters and whether water quality standards need to 
be revised to protect those rights pursuant to Sec.  131.9. The State 
shall also re-examine any

[[Page 74379]]

waterbody segment with water quality standards that do not include the 
uses specified in section 101(a)(2) of the Act every 3 years to 
determine if any new information has become available. If such new 
information indicates that the uses specified in section 101(a)(2) of 
the Act are attainable, the State shall revise its standards 
accordingly. Procedures States establish for identifying and reviewing 
water bodies for review should be incorporated into their Continuing 
Planning Process. In addition, if a State does not adopt new or revised 
criteria for parameters for which EPA has published new or updated CWA 
section 304(a) criteria recommendations, then the State shall provide 
an explanation when it submits the results of its triennial review to 
the Regional Administrator consistent with CWA section 303(c)(1) and 
the requirements of paragraph (c) of this section.
* * * * *
[FR Doc. 2022-26240 Filed 12-2-22; 8:45 am]
BILLING CODE 6560-50-P