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1 of 63 E

. O

. 12866_OW WQS RIN 2040

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_ 2011 10 2 7 201 30722

.

ENVIRONMENTAL PROTECTION AGENCY

40 CFR P art 131

[EPA

– HQ

– OW

– 2010

– 0606 ; FRL_XXXX

– X]

RIN 20 40

– AF 16

Water Quality Standards Regulatory Clarifications

AGENCY: Environmental Protection Agency (EPA).

A CTION: Proposed rule

.

_______________________________________ _________________________

SUMMARY: The Environmental Protection Agency (EPA) is proposing changes to the
federal water quality standards (WQS) regulation which help s implement the Clean
Water Ac t . The changes will improve the regulation’s effectiveness in restoring and maintaining the chemical, physical

, and biological integrity of the n ation’s waters

. The
EPA is seeking comments from interested parties on these proposed revisions

. The core
of t he current regulation has been in place since 1983 ; s ince then

, a number of issues have been raised by states, tribes, or stakeholders or identified by the EPA in the implementation process that will benefit from clarification and greater specificity

. The proposed rule addresses the following key program areas: (1) Administrator’s
determination s that new or revised WQS are necessary , (2) designated uses, (3) triennial
review s , (4) an tidegradation, (5) v ariances to WQS , and (6) compliance schedule
authorizin g provisions

. DATES: Comments must be received on or before [ INSERT DATE 60 DAYS 90 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER]

. ADDRESSES: Submit your comments, identified by D ocket identification ( ID ) No.
EPA

– HQ

– OW

– 20 10

– 0606 , by one of the following me thods:

Federal eRulemaking Portal: http://www.regulations.gov

. Follow the online instructions for submitting comments.

Email: ow

- docket@epa.gov

. Mail: Water Docket , Environment al Protection Agency , Mail Code 2822T

, 1200 Pennsylvania Ave

. , NW

. , Washington, DC 20460

. Attention: Docket ID
No. EPA

– HQ

– OW

– 2010

– 0606

. Hand Delivery: EPA Docket Center, EPA West R o o m 3334 , 1301 Constitution
Ave

. , NW., Washington, DC 20004, Attention: Dock et ID No. EPA

– HQ

– OW

– 2010

– 0606

. Such deliveries are only accepted during the Docket Center ’s normal hours of operation

. Sp ecial arrangements should be made for deliveries of boxed
information by calling 202

- 566

- 2426

. Comment [SHPD1]: All changes shown below

, unless otherwise noted, were made at the suggestion or recommendation of OIRA during EO 12866
Review

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2 of 63 Instructions: Direct your comments to Do cket ID No. EPA

– HQ

– OW

– 2010

– 0606

. The
EPA ’ s policy is that all comments received will be included in the public docket without change and may be made available online at http://w ww.regulations.gov , including any

pers onal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise prot ected through http://w ww.regulations.gov or email

. The http://w ww.regulations.gov website is an “anonymous access” system, which means the EPA will not know your identity or contact information unless you provide it in the body of your comment

. If you send an email comment directly to the EPA without going through www.regulations.gov your email address will be automatically captured and included as part of the comment
that is placed in the public docket and made available on the Internet

. If you submit an electronic comment, the EPA recommends that you include your name and other contact information in the body of your comment and with any dis c you submit

. If the EPA

cannot rea d your comment due to technical difficulties and cannot contact you for clarification, the EPA may not be able to consider your comment

. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or
viru ses

. For additional information about the EPA’s public docket visit the Docket Center homepage at http://www.epa.gov/epahome/dockets.htm

. Docket: All documents in the docket are listed in the http://w ww.regulations.gov index

. Although listed in the index, some information is not publicly available ( e.g., CBI or other information whose disclosure is restricted by statute )

. Certain other material s , such as copyrighte d material, will be publicly available only in hard copy

. Publicly available docket materials are available either electronically in http://w ww.regulations.gov or in hard copy at the Office of Water Docket Center , E PA/DC, EPA West, Room 333 4

, 1301 Constitution Ave

. , NW

. , Washington, DC

. The Public Reading Room is open from
8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays

. The telephone number for the Public Reading Room is (202) 566

– 1744 ; the t elephone number for the
Office of Water Docket Center is (202) 566

– 2426.

FOR FURTHER INFORMATION CONTACT: Christina Christensen Janita Aguirre

, Standards and Health Protection Division, Office of Science and Technology ( 4305T ), Environmental Protection Age ncy, 1200 Pennsylvania Avenue, NW., Washington, DC
20460 ; telephone number: 202

– 566

– 1860 ; fax number: 202

– 566

– 0409; email address: WQSRegulatoryClarifications@epa.gov

. SUPPLEMENTARY INFORMATION: This supplementary information section is organized as follows:

Table of Contents

I. General Information

A. Does T his Action Apply to Me?
B. What Should I Consider as I Prepare My Comments for the EPA?
II. Background Comment [SHPD2]: EPA Staffing Change. Change was not made at the suggestion or recommendation of OIRA during EO 12866 Review.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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3 of 63 A. What is the Statutory and Regulatory History of the WQS Regulation and Program?
B. How has the EPA E ngaged the P ublic and R eceived I nput in C onsidering
U pdates and I mprovements to the Federal WQS Regulation?
C. Why is the EPA Proposing Changes to the Federal WQS Regulation?
III. Program Areas for Proposed Re gulatory Changes

A. Introduction
B. Administrator’s Determination s that New or Revised WQS are Necessary
C. Designated Uses
D. Requirements of Triennial Review s E. Antidegradation Implementation
F. W QS Variances
G. Provisions Authorizing the Use of Permit

- Based Compliance Sch edules
H. Other Changes
I V. When D oes T his Action Take Effect?
V. Economic Impacts on State and Tribal WQS Programs
V I

. Statutory and Executive Order Reviews

A

. Executive Order 12866: Regulatory Planning and Review and Executive
Order 13563: Improving Regula tion and Regulatory Review
B

. Paperwork Reduction Act
C

. Regulatory Flexibility Act
D

. Unfunded Mandates Reform Act
E

. Executive Order 13132 (Federalism)
F

. Executive Order 13175
G

. Executive Order 13045: Protection of Children from Environmental Health
R isks and Safety Risks
H

. Executive Order 13211: Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use
I

. National Technology Transfer and Advancement Act
J

. Executive Order 12898: Federal Actions to Address Environmen tal Justice in Minority Populations and Low

- Income Populations.

I. General Information

.
A. Does T

his Action Apply to Me?

S tate and tribal governments responsible for administering or overseeing water quality programs may be directly affected by this rulemaking

, as states and authorized
tribes 1 may need to consider and implement new provisions, or revise existing provisions,
in their water quality standards ( WQS or standards )

. Entities such as ind ustrial dischargers or publicly owned treatment works that discharge pollutants to waters of the
United States may be indirectly affected by this rulemaking because WQS may be used in determining permit limits under the National Pollutant Discharge Elimination System

1 Hereafter referred to as “states and authorized tribes” or “sta tes and tribes.” “State” in the Clean Water Act and this document refers to a state, the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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4 of 63 (NPDES) or in implementing other Clean Water Act (CWA or the Act) regulatory

programs

. Citizens concerned with water quality and WQS implementation may also be interested in this rulemaking , although they m ight not be directly impacted

. Categories and entities that may potentially be affected include the follow ing :

Category Examples of potentially affected entities

State s and T ribes State s and authorized tribes (tribes eligible to administer WQS under the CWA )

. Industry Industries discharging pollutants to waters of the United
States

. Municipalities Publicl y owned treatment works or other facilities discharging pollutants to waters of the United States

.

This table is not intended to be exhaustive, but rather provides a guide for entities that may be directly or indirectly affected by this action

. It lists the types of entities of
which the EPA is aware could be potentially affected by this action

. Other types of
entities not listed in the table m ight be affected through implementation of WQS that are
revised as a result of this rule

. If you have questions r egarding the applicability of this action to a particular entity, consult the person listed in the preceding FOR FURTHER INFORMATION CONTACT section.

B. What Should I Consider as I Prepare My Comments for the EPA?

1. Resubmitting Relevant Comments from 2010 Stak eholder and Public Listening
Sessions.

From August through December 2010, the EPA held multiple listening sessions with stakeholders and the public, as well as consultation sessions with states

, tribes, and representatives of state and local elected offic ials, concerning the general directions of
this p ropo s ed rule

. The EPA considered the views and comments received from these
sessions in developing this proposal. T he proposal published today has evolved substantially from the materials the EPA shared at t hat time

. If you submitted comments in response to any of those sessions and wish for these comments to be considered during the public comment period for this proposed rulemaking, you must resubmit such

comments to the EPA in accordance with the instructi ons outlined in this document.

2. Submitting C onfidential B usiness I nformation (CBI)

. Do not submit this information to the EPA through http://w ww.regulations.gov or email

. Clearly mark the part or all of the informat ion that you claim to be CBI

. For CBI
information in a dis c that you mail to the EPA, mark the outside of the dis c as CBI and then identify electronically within the dis c the specific information that is claimed as
CBI

. In addition to one complete version of the comment that includes information claimed as CBI, a copy of the comment that does not contain the information claimed as CBI must be submitted for inclusion in the public docket

. Information so marked will not*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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5 of 63 be disclosed except in accordance with procedures set forth in 40 Code of Federal Regulations ( CFR ) part 2.

3. Tips for Preparing Your Comments

. When submitting comments, remember to:

Identify th e rulemaking by docket number and other identifying information (subject h eading, Federal Register dat e and page number).

Follow directions

. The agency may ask you to respond to specific questions or organize comments by referencing a CFR part or section number.
Submit any and all comments on any portion of the rulemaking that you wish to
be considered.

Ex plain why you agree or disagree, suggest alternatives, and substitute language for your requested changes.
Describe any assumptions and provide any technical information and/or data that you used.
If you provide an estimate of potential costs or burdens, e xplain how you arrived at your estimate in sufficient detail to allow for it to be reproduced.
Provide specific examples to illustrate your concerns, and suggest alternatives.
Explain your views as clearly as possible , avoiding the use of profanity or

pers onal threats

. Make sure to submit your comments by the comment period deadline identified.

II. Background

.
A. What is the Statutory and Regulatory History of the WQS Regulation and Program?

T he CWA

— initially enacted as the Federal Water Pollution Control Act
Amen dments of 1972 (Pub. L. 92

‒ 500 ) and subsequent amendments

— establish es the
basic structure in place today for regulating pollutant discharges into the waters of the
United States

. In the Act, Congress established the national objective to “ restore and
maint ain the chemical, physical, and biological integrity of the Nation’s waters, ” and to achiev e “ wherever attainable, an interim goal of water quality which provides for the protection and propagation of fish, shellfish, and wildlife and for recreation in and on the

water ” (s ections 101(a) and 101(a)(2) )

.
T he CWA establishes the basis for the current WQS regulation and program

. Section 301 of the Act provides that “the discharge of any pollutant by any person shall be unlawful” except in compliance with specif ic requirements of Title III and IV of the
Act

, including industrial and municipal effluent limitations specified under section 304 and “any more stringent limitation, including those necessary to meet WQS , treatment standards or schedule of compliance est ablished pursuant to any State law or regulation.”
Section 303(c) of the Act addresses the development of state and authorized tribal WQS and provides for the following :*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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6 of 63 (1) WQS shall consist of designated uses and water quality criteria based upon such

us es ;
(2) S tates and authorized tribes shall establish WQS considering the following possible uses for their waters

– propagation of fish, shellfish and wildlife, recreational

purposes, public water supply, agricultural and industrial water supplies, navigat ion

, and other uses;

( 3 ) S tate and tribal standards must protect public health or welfare, enhance the quality of water, and serve the purposes of the Act;

( 4 ) S tates and tribes must review their standards at least once every 3 years; and

( 5 ) The EPA is re quired to review any new or revised state and tribal standards, and is also required to promulgate federal standards where the EPA fin d s that new or revised state or tribal standards are not consistent with applicable requirements of the Act or in
situatio ns where the Administrator determines that federal standards are necessary to meet the requirements of the Act.

The EPA established the core of the current WQS regulation in a final rule issued in
1983. 2 This rule strengthened previous provisions that had been in place since 1977 and moved them to a new 40 CFR part 131 ( 54 FR 51400)

. The resulting regulation describes
how the WQS envisioned in the CWA are to be administered

. It clarifies the content of
standards and establishes more detailed provisions for implementing the provisions of the
Act

. The following are examples of how the regulation has interpreted and implemented
the CWA provisions regarding standards :
Establishes p rocedures to recognize the importance of designating beneficial

uses to achieve th e CWA section 101(a)(2) interim goal with regard to protecting aquatic life and recreational uses , and to provide states and tribes the option of
establish ing sub

- categor ies of uses, such as cold water and warm water aquatic life designations (§131.10)

. Pr ovides detail concerning the adoption of numeric water quality criteria

, including authoriz ing the modification of the EPA’s national recommended
criteria to reflect site

- specific conditions , the use of criteria methodologies
different from the EPA’s recom mendations so long as they are scientifically
defensible , and the use of narrative criteria where numeric criteria cannot be
derived or to supplement numeric criteria (§131.11)

. Incorporates and clarifies the Act’s emphasis on the importance of preserving existing uses and identifying and preserving high quality and outstanding resource waters through longstanding antidegradation provisions

. The se provisions are designed to protect existing uses and the level of water quality necessary to support these uses ; to protect high quality waters and provide a

2 In this pream

ble, the EPA uses the term “water quality standards regulation” to mean subparts A, B, and C of part 131. These three subparts, comprising sections §§131.1 through 131.22, contain general provisions, requirements for establishing standards, and procedures for review and revision of standards, respectively. Part 131 also includes a subpart D that contains the text of WQS the EPA has promulgated to replace or augment state and tribal standards.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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7 of 63 transparent analytic process for states and tribes to determin e whether limited degradation of such waters is appropriate and necessary (§131.12).
In support of the 1983 regulation, the EPA has issued a numbe r of guidance
documents , such as the “ Water Quality Standards Handbook ” (WQS Handbook) 3

, that
have provided guidance on the interpretation and implementation of the WQS regulation

, and on scientific and technical analyses that are used in making decisions that would impact WQS

. The EPA also developed the “ Technical Support Document for Water Quality

- Based Toxics Control ” 4 (TSD) that provided additional guidance for implementing state and tribal WQS.
The part 131 regulation has been modified twice since 1983

. First, in 1991 the EPA
added §§ 131.7 and 131.8 regarding tribes, pursuant to section 518 of the CWA ( 56 FR
64893 )

. Section 518, which was enacted in 1987 , i ncluded provisions extend ing the ability to participate in the WQS program to Indian t ribes

. S econ d, in 2000 the EPA promulgated §131.21(c), commonly known as the “Alaska Rule

, ” to clarify that new and revised standards adopted by states and tribes and submitted to the EPA after May 30,
2000 become applicable standards for CWA purposes only when approv ed by the EPA ( 66 FR 24641)

.
B. How H

as the EPA E

ngaged has the Public and R eceived P rovided EPA I

nput on the
N ational WQS P rogram in C onsidering U pdates and I

mprovements to the Federal WQS Regulation? P ast?

The EPA received comments, data, and information fr om over 6,000 commenters in developing “ Final Water Quality Guidance for the Great Lakes System ” in 1995 (60 FR 15366)

. The final Guidance represented more than six years of intensive, cooperative efforts that included participation by the eight Great Lake s s tates, the EPA, and other Federal agencies in open dialogue with citizens, local governments, municipalities, academia, the environmental community, and industries located in the Great Lakes ecosystem

. This process entailed a thorough review and analysi s of the federal water quality program and opportunities for greater clarity, focus, and improved implementation

. The final Guidance is codified in 40 CFR part 132 and h elp s establish consistent, enforceable, and long

- term protection s from all types of pol lutants, with short

term emphasis on the types of bio

- accumulative contaminants that accumulate in the food web and pose a threat to the Great Lakes System

. While not all provisions of the Final Guidance may be necessary or appropriate for the national Wa ter Quality Standards Program

, the EPA considered the input received from the public through the development of the Final Guidance during the preparation of this proposed rule.

In 1998, the EPA issued an Advance Notice of Proposed Rulemaking (ANPRM) to
dis cuss and invite comment on over 130 aspects of the federal WQS regulation and

program , with a goal of identify ing specific changes that might strengthen water quality protection and restoration, facilitate watershed management initiatives, and incorporate evolving water quality criteria and assessment science into state and tribal WQS

programs

. (63 FR 36742). In response, the EPA received over 3

, 200 specific written

3 F irst edition, December 1983 ; second edition, EPA 823

- B

- 94

- 005 a, August 1994.

4 First edition, EPA 44 0 /4

- 85

- 032, September, 1985 ; revised edition, EPA 505/2

- 90

- 001, March 1991

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8 of 63 comments from over 150 comment letters

. The EPA also held three public meetings during the 1 80

- day comment period where additional comments were received and
discussed.

As Although the EPA chose not to move forward with a rulemaking after the ANRPM, a s a result of this th e input received

, the EPA identified a number of high priority issue areas for which the Agency has developed guidance

, provided technical
assistance and continued further discussion and dialogue to assure more effective program implementation

. For example, m any ANPRM commenters expressed the need
for a dditional guidance assistance o n establishing designated uses of water bodies and the process to follow when making designated uses more or less protective

. In order to receive input from a broad set of stakeholders on these topics, the EPA held a follow

- up national symposium on designa ted uses on June 3

– 4, 2002 in Washington, DC. Approximately 200 interested citizens, government officials, and regulated parties attended this open meeting , which included presentations from a variety of stakeholders
and an expert panel representing differ ent viewpoints

. 5 In addition

, the EPA hel d four co

regulator workshops between February 2005 and April 2006 with state, interstate, and tribal partners , and gathered further input and feedback on the establishment, adjustment, and implementation of designa ted uses. 6

C. Why is the EPA Proposing Changes to the Federal WQS Regulation?
The core requirements of the current WQS regulation have been in place for over 2 7 over 30 years

. These requirements have provided a strong foundation for water quality

based controls , including water quality assessments, impaired waters lists, and total maximum daily loads ( TMDLs ) under CWA section 303(d)

, as well as for water quality

based effluent limits (WQBELs) in NPDES discharge permits under CWA section 402

. As with the developm

ent and operation of any program, however, a number of policy and
technical issues ha ve recurr ed over the past 27 30 years in individual standards reviews, stakeholder comments, and litigation that the EPA believes would be addressed and
resolved more effic iently by clarifying, updating and revising the federal WQS regulation to assure greater public transparency, better stakeholder information, and more effective implementation

. From 2008 through 2010, the EPA held ongoing discussions with state and tribal partners and other stakeholders

. T hese discussions addressed a wide range of issues , from
which a subset ha s been identified as significant areas of continuing concern

. These
issues and the EPA’s proposed regulatory approaches to address them are discussed in
detail in section III below

. In 2010, the EPA held listening sessions with the public, states and tribes to obtain feedback on this subset of issues. The agenda, background material, list of participants and the public transcripts may be viewed at http://water.epa.gov/lawsregs/lawsguidance/wqs_listening.cfm#records . Section III of

5 Proceedings from the national symposium on designated uses can be found at http://water.epa.gov/scitech/swguidance/waterquality/standards/upload/2002_08_06_standards_uses_sym posium_proceedings.pdf

. http://water.epa.gov/scitech/swguidance/standards/uses/symposi um_index.cfm

. 6 A summary of the co

- regulator workshops and a link to the use attainability analysis (UAA) case studies
can be found at http://water.epa.gov/scitech/swguidanc e/waterquality/standards/uses/

. http://water.epa.gov/scitech/swguidance/standards/uses/uaa/info.cfm

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9 of 63 the EPA’s proposal describes the key areas the EPA has chosen to address based on inpu t received and the EPA’s proposed regulatory approaches. The EPA believes that s tates

, tribes , other stakeholders, and the public will benefit from clarification i n these key areas to better understand and make proper use of available CWA tools and flexib ilities, while maintaining open and transparent public participation

. Clear regulatory requirements and improved implementation will provide a more transparent and well

- defined pathway for restoring and maintaining the biological, chemical, and physical in tegrity of the n ation’s

waters

. T he changes the EPA is proposing today add or modify specific regulatory provisions to address key areas described below.

III. Program Areas for Proposed Regulatory Clarifications

.
A. Introduction

. As discussed in section II.C, the EPA has had ongoing dialogue with states , tribes and stakeholders on key issues that are central to assuring effective implementation of the WQS program

. As part of this process , the Agency has considered several fundamental questions in evaluating opportu nities to improve implementation of the WQS program including which recurring implementation issues w ould benefit most from a regulatory clarification or update

, whether the re are emerging issues that could be more effectively addressed through regulatory revisions, whether the regulation continues to have the appropriate balance of consistency and flexibility for states and tribes

, and whether the resulting program effectively facilitates public participation in standards decisions

. As a result of this eva luation and consideration of continuing input from states , tribes and stakeholders, the EPA is proposing changes to key program areas of its WQS regulation at 40 CFR part 131 that the Agency believes will result in improved regulatory clarity

, and more eff

ective program implementation, and lead to environmental improvements in water quality

. This proposed rulemaking requests comment on regulatory revisions in the following six key issue area s: (1) Administrator’s
determination that new or revised WQS are ne cessary , (2) designated uses, (3) triennial
review s , (4) an tidegradation, (5) WQS variances , a nd (6) compliance schedule authorizing provisions

.
B. Administrator’s Determination s that New or Revised WQS are Necessary

. 1. The EPA Proposal

. The EPA is proposing to amend paragraph (b) of §131.22 to add a requirement that an Administrator’s determination must be signed by the Administrator or his or her duly authorized delegate, and must include a statement that the document is a determination for purposes of section 303(c)(4)(B) of the Act

. 2. Background and Rationale for Revision

. Se ction 303(c)(4)(B) of the CWA provides the EPA Administrator with authority to determine that a new or revised WQS is necessary to meet the CWA requirements

, typically in those situations where a state or tribe fails or is unable to act in a ma nn er consistent with the CWA

. Such a determination is made at the Administrator’s discretion, after evaluating all relevant factors

. An Administrator’s determination triggers the*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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10 of 63 requirement for the E PA to prom ptly prepare and publish proposed regulations setting
forth a revised or new WQS for the waters of the United States involved , and for the EPA to promulgate such WQS unless the state or tribe adopts and the EPA approves such WQS before the EPA pr omulgation

. The EPA is concerned that the process whereby the Administrator determines that new or revised standards are necessary is not always clearly understood or interpreted by the public and stakeholders

. In some instances, this lack of understandin g has led to a
mistaken conclusion that the EPA has made a CWA 303(c)(4)(B) determination when, in fact, the EPA did not ma k e and d id not nor intend to make a determination

. For example, Agency memoranda or documents articulating areas where states’ WQS may need improvements have sometimes been construed or alleged by stakeholders to be official Administrator determinations that oblig ate the EPA to propose and promulgate federal WQS for such state s

. In order to ensure effective implementation of the national WQS

program, to provide direct, clear, and transparent feedback on state and tribal actions, and

to maintain an open and constructive dialogue with states , tribes and stakeholders on important water quality issues, it is essential that the EPA have the ab ility to provide
feedback

, and states and tribes have the opportunity to consider and evaluate the Agency’s views

, without fear of litigation triggering a duty on the part of the EPA to propose and p r omulgate WQS before either a s tate , tribe or the Agency believes such a

course is appropriate or necessary

. The EPA believes that today’s revision would establish a more transparent process for the Administrator to announce any determination made under section 303(c)(4)(B) of
the Act

. Such a revision will allo w the EPA to effectively provide direct and specific written recommendations to states and tribes on areas where WQS improvements should
be considered , without the possibility that such recommendations will be construed as a determination that obligates th e EPA to propose and promul gate new or revised
standards

. The public’s ability under Section 553(e) of the Administrative Procedure Act ( 5 U.S.C. 553(e) ) to petition the EPA to issue, amend, or repeal a rule, which could implicate the EPA’s discretionary a uthority under CWA section 303(c)(4)(B)

, would not be affected by this proposed revision.

The EPA invites comments on the proposed amendment to paragraph (b) of §131.22

. The EPA also invites comment on any other options it should consider or on the interpr etations expressed in this section

. C. Designated Uses

. 1. The EPA Proposal

. The First, t

he EPA is proposing to amend paragraph (g) at §131.10 to provide that
where a state or tribe demonstrates through the use adopts new or revised water quality
standard s based on a use attainability analysis (UAA ) p rocess that a use specified in section 101(a)(2) , or a sub

- category of such a use, is not attainable

, )

, it must adopt the
h ighest a ttainable u se (HAU) . States and the tribes must also adopt criteria that , as specifi ed in §131.11(a), to protect such a that use

. The EPA is also proposing to add the a definition of HAU C , as defined in today’s proposal, to HAU a t §131.3(m ) )

. Specifically,*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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11 of 63 the EPA is proposing to define HAU as “ the aquatic life, wildlife, and /or recreation use that is both closest to the uses specified in section 101(a)(2) of the Act and attainable, as determined using best available data and information through a use attainability analysis defined in §131.3(g).”

Second

, the EPA is making a clarifying chang e by deleting appropriate edits to § 131.10(g) to be clear that the factors listed in § 131.10(g) must be used when a UAA is required by § 131.10(j)

, and is restructuring §131.10 (k) in its entirety, as this provision is duplicative with §131.10(j). to clearly articulate when a UAA is not required.

2. Background

. Designated uses communicate a state’s or tribe’s environmental management objectives for its waters and drive on

- the

- ground water quality decision

- making and improvements

. To establish appropriate WQS , st ates and tribes define the water quality goals of a water body first by designating the use(s) and second by setting criteria necessary to that protect those uses

. W QS are the foundation for other CWA requirements applicable to a water body, such as WQBELs for point source dischargers, as well as assessment of waters and establishment of TMDLs for waters not meeting applicable WQS

. Because designated D esignated uses play such an important role in the effective implementation of the CWA

, the

. T he EPA believes it is essential to provide clear and concise regulatory requirements for states and tribes to follow (1) when adopting a use specified in section 101(a)(2) or sub

- categories of such uses for a water body for the first time, or (2) when removing or revisin g a currently adopted use specified in section 101(a)(2) of the Act, or a sub

- category of such a use

, . This is particularly important in light of r ecurring input and questions on this issue and the potential for conflicting interpretations and inconsistent case

- by

- case WQS program implementation.

Under section 303 (33 U

. S

. C

. 1313) of the CWA, s tates and authorized tribes are required to develop WQS for waters of the United States within the ir s tate

. WQS shall include designated use or uses to be made of t he water and criteria necessary to protect the uses ( CWA 303(c)(2)(A) )

. The beneficial uses to be considered by s tates in establishing WQS are specified in the Act , including to protect those uses

. Such standards shall be established taking into considerati on the use and value of waters for public water supplies, propagation of fish and wildlife, recreation, agricultural uses, industrial uses

, navigation and other purposes

. (CWA 303(c)(2)(A)). Designated uses are defined at 40 CFR 131.3(f) as the “uses spec ified in water quality standards for each water body or segment whether or not they are being attained.” A “use” is a particular function of, or activity in, a particular waterbody water body that requires a specific level of water quality.

Section 101(a)(2 ) of the CWA establishes the national goal that “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” be achieved by July 1 , 1983. CWA section 303(c)(2)(A) requires state and tribal WQS to “protect the public health or welfare, enhance the quality of the water and serve the purposes of this [Act].” The WQS regulation at 40 CFR part 131 interprets and implements these provisio ns through requirements that WQS protect the uses specified in section 101(a)(2)*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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12 of 63 of the Act unless those uses are shown to be unattainable, effectively creating a rebuttable presumption of attainability. 7 Thus

, it is has been the EPA’s longstanding interpre tation that the uses specified in section 101(a)(2) of the Act are presumed attainable unless a

state or tribe affirmatively demonstrates through a UAA 8 that 101(a)(2) uses are not attainable as provided by one of six regulatory factors at § 131.10(g). 9

The current WQS regulation at 40 CFR 131.10 requires states and tribes to specify appropriate water uses to be achieved and protected; requires that WQS ensure attainment and maintenance of WQS of downstream waters ; allows for sub

- categories of uses (e.g.,

to differentiate between cold water and warm water fisheries) and seasonal uses;
describes when uses are attainable ; lists six factors of which at least one must be satisfied to justify removal of designated uses uses specified in Section 101(a)(2) that are n ot existing uses; prohibits removal of existing uses; requires states and authorized tribes to revise WQS to reflect uses that are presently being attained but not designated; and
establishes when a state is or tribe is or is not required to conduct a UAA

. States and tribes have flexibility when managing their designated uses consistent with the CWA and implementing regulation

. More s pecifically, the current WQS regulation require s a UAA when designating uses that do not include the uses specified in secti on 101(a)(2) of the CWA, when removing a designated use specified in section 101(a)(2) of the Act, or when adopting
sub

- categories of such uses that require less stringent criteria

. The phrase “ u ses specified in section 101(a)(2) of the Act” refers to uses that provide for the protection and propagation of fish (including aquatic invertebrates) , shellfish, and wildlife, and recreation in and on the water, as well as for the protection of human health when consuming fish, shellfish, and other aquatic life

. 10 “Sub

- category of a use specified in section 101(a)(2) of the Act” refers to any use that reflects the subdivision of uses specified in section 101(a)(2) of the Act into smaller, more homogenous groups of waters with the intent of reducing variability with in the group

. 40 CFR 131.10(c) provides that

states and authorized tribes may adopt sub

- categories of a use and set the appropriate criteria to reflect varying needs of such sub

- categories of uses

. The States and tribes have
broad discretion to determine t he appropriate level of specificity to use in identifying and defining designated uses, and nothing in this proposal is intended to narrow that discretion. However, t

he EPA has found that the clearer, more accurate, and refined the designated uses are in describing the state’s or tribe’s objective for a water body, the

7 See 40 CFR 131.2; 131.5(a)(4); 131.6(a),(f); 131.10(g),(j ), (k ).

8 See 40 CFR 131.3(g). A UAA is a structured scientific assessment of the factors affe cting the attainment of the use that may include physical, chemical, biological, and economic factors as described in §131.10(g).

9 See 40 CFR 131.10(g). 9 EPA’s “rebuttable presumption” that the uses specified in CWA section 101(a)(2) are presumed attainab le, unless demonstrated to be unattainable through a UAA

, is a long

- standing interpretation that has been upheld in Idaho Mining Association v. Browner, 90 F. Supp. 2d 1078 (D. Idaho 2000).

10 http://www.epa.gov/waterscience/standards/library/shellfish.pdf

. 10 http://water.epa.gov/scitech/swguidance/standards/upload/2000_10_31_standards_shellfish.pdf

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13 of 63 more effective those use designations can be in driving the management actions necessary to restore and protect water quality

. 11

The current regulation at §131.10(g) and (h)(1) provides that states and tribes may not remove a designated use if it would also remove an existing use unless a use requiring more stringent criteria is added

. 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.” E xisting uses are known to be “attained” when both the use and the water quality necessary to support the use has been achieved. 12 The EPA recognizes, however, that all the necessary data may not be av ailable

. Where data may be limited

, inconclusive, or not available, states and tribes have discretion to determine whether an existing use has been attained, based on either the use or the water quality. It is important
to note that t

he prohibition on rem oving an existing use is not intended to apply to a
situation where the state or tribe wishes to remove a use where removal would result in improving the condition of a water body

. The EPA interprets intent of the regulation is to allow further the removal of existing uses where actions make the water body more like its minimally impacted condition

, so the provision at §131.10(h)(1) is not objective in tension with carrying out the goals of the CWA “ CWA section 101(a) to “ restore and maintain the chemical, p hysical, and biological integrity” of the nation’s waters (CWA section 101(a))

. , not to prevent actions that make the water body more like its minimally impacted condition. For example, if a warm water fishery exists behind a dam, the existing use provisio n would not prevent the state from removing that dam because doing so would likely restore the natural cold water aquatic ecosystem

. 3. Rationale for Revision

. Adoption of Highest Attainable Use

As discussed above, s tates and tribes have flexibility to adj ust designated designate and
revise uses through a UAA process in accordance with the provisions of §131.10 (g which implements the requirement in 303(c)(2)(A) that standards shall be set to serve the purposes of the Act as set forth in Section ) 101(a)(2) a nd 30 3(c)(2)(A ). However, that flexibility is provided in the context of meeting the overall goals of the CWA at s ection 101(a) to “restore and maintain the chemical, physical, and biological integrity of EPA believes that it may be appropriate to provide greater clarity in the Nation’s

waters .” regulations implementing this requirement

. For example , as part of the UAA

process, a state or tribe may be able to adequately demonstrate , consistent with 40 CFR 131.10(g)(3)

, 13 that a current designated that a use for supporting a particular class of

11 EPA notes that a use may meet the description of a “sub

- category of a use specif ied in section 101(a)(2) of the Act,” but not provide an equal level of protection as a use specified in section 101(a)(2) of the Act. If a state wishes to designate such a sub

- category, a UAA would be required, consistent with §131.10(j).

12 See http://water.epa.gov/scitech/swguidance/waterquality/standards/upload/Smithee

- existing

- uses

- 2008

- 09

- 23.pdf

. 12 See http://water.epa.gov/scitech/s wguidance/standards/upload/Smithee

- existing

- uses

- 2008

- 09

- 23.pdf

. 13 40 CFR 131.10(g)(3) allows a state to remove a designated use that is not an existing use if the state can demonstrate that attaining the designated use is not feasible because human

- caused conditions or sources of pollution prevent the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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14 of 63 aquatic life may is not be attainable

. However, if some less sensitive aquatic organisms
are able to survive at the site under current or attainable future conditions

, the goals of the
CWA are not achieved served by simply remov ing the aquatic life use designation and applicable criteria without considering if existing water quality can be maintained or, where applicable, if water quality can be restored

. Rather, the UAA must also identify what level of aquatic life protect ion would be attainable and determining whether there is

some alternate 101(a)(2) use or subcategory of such a use that is feasible to attain. T he
UAA process can be used to identify the highest aquatic life use that is attainable (i.e., highest attainable use) . Under today’s proposal, the state or tribe would be required to designate that highest attainable use

. However, as noted above, s tates and tribes have broad discretion to determine the appropriate level of specificity to use in identifying and
defi ning designated uses, and nothing in this proposal is intended to narrow that discretion. To further clarify this in rule text, the proposal would add the following language to 131.10(g): “ To meet this requirement, States may, at their discretion, utilize their current use categories or subcategories, develop new use categories or subcategories, or adopt another use which may include a location

- specific use.” Thus,

w hile a state or tribe may wish to establish a new or revised use category or subcategory

t o meet the proposed HAU requirement , the state or tribe could also comply with this requirement by adopting the highest attainable use from its currently established use categories or subcategories or by adopting a location

- specific use , or another defensi ble approach

.

The EPA’s current regulation at 40 CFR s ection § 131.6(a) requires that each state ’s or tribe 's water quality standards submitted to the EPA for review must include "use designations consistent with the provisions of sections 101(a)(2) and 3 03(c)(2) of the
Act." Section s 131.10(g) and 131.10(j) implement the CWA by authoriz ing a state or tribe to designate uses that do not include the uses specified in section 101(a)(2) or to remove protection for a use specified in section 101(a)(2) (or subc ategory of such a use) only through a UAA

. If the state or tribe demonstrates through a UAA that a 101(a)(2)

use , or a subcategory o f such a use, is not attainable, then the state must designate that

use

. In other words, §131.10 allows states and tribes t o remove unattainable uses; however, attainable uses must be retained. in order to comply with this regulatory requirement

, t

he state or tribe will need to adopt use designations that continue to serve the 101(a)(2) goal by protecting the highest attainable use unless the state or tribe has shown that no use specified in section 101(a)(2) is attainable.

The highest attainable use and c riteria (HAUC) Today’s proposal is intended to clearly articulate a requirement to adopt the HAU in the EPA’s regulation. HAU is defined in today’s proposal as “ the aquatic life, wildlife, and/or recreation use and the
criteria that protect such a use

, that are found to be that is both closest to the uses specified in section 101(a)(2) of the Act and are feasible to attain attain a ble , as determined using
best available data and information throug h an appropriate UAA.” a use attainability analysis defined in §131.3(g) .” With this definition, the EPA recognize s and affirm s the primary role accorded to states and tribes under the CWA i n establishing categories of designated uses and assigning those uses to specific water bodies within their jurisdiction.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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15 of 63 The EPA intends for states and tribes to use their existing use classification scheme to meet the HAU requirement whenever the state o r tribe determines that it is appropriate to do so. The EPA is not requiring states and tribes to revise their use categorization scheme by develop ing new use categories or subcategories, although states and tribes are encouraged to develop them if they fi nd it practical and appropriate to do so. While the EPA believes that there is often value in specifying more narrowly targeted aquatic life uses (e

. g

. , warm water or cold water fishery), the EPA also recognizes that it may not be practical for states or t ribes to adopt fine grad ations of aquatic life uses in many cases. The proposed rule would thus not affect a state or tribe’s discretion to determine the appropriate level of specificity in establishing designated uses.
When adopting the HAU, s tates an d tribes must also adopt criteria to protect that

use , as specified in §131.11(a)

. Requiring the HAU C HAU to be adopted as an essential part of the UAA process is important to ensure adequate implementation of adequate ly implement both CWA sections 101(a ) a nd 303(c)

. Section 303(c)(2)(A) requires that WQS shall “ enhance the quality of the water and serve the purposes of this” Act

. The objective of the CWA in section 101(a) is to restore and maintain the chemical, physical, and biological integrity of the Nat ion’s waters. It is the national goal of the CWA in section 101(a)(2) to provide for the protection and propagation of fish, shellfish, and wildlife and recreation in and on the water, “ where ver attainable

. ” The EPA interprets the WQS implementing regulat ion to mean that designated uses must protect the uses specified in section 101(a)(2) of the CWA unless such uses are demonstrated to be
unattainable

. ) (2) and 303(c) (2)(A)

. Where uses specified in section 101(a)(2) uses are unattainable, it is important th at states and tribes still strive to attain uses that continue to serve the purposes of the Act and also enhance the quality of the water. Thus, as part of the UAA process

, states and tribes must adopt the HAUC that is as close as possible to
the designat ed uses specified in section 101(a)(2) of the Act

. In determining the HAU C HAU to adopt in place of an unattainable aquatic life, wildlife, and/or recreation use, s tates and tribes should use the same regulatory factors (at 40 CFR 131.10(g)) and data anal ysis that were used to evaluate the attainability of the previously designated use

. When conducting this review and soliciting input from the public , states and tribes should consider not only what is currently attained, but also what
is attainable in the future after achievable gains in water quality are realized

. Such a prospective analysis may involve the following :
identifying the current and expected condition for a water body ; evaluating the effectiveness of best management practice s ( BMP s ) and
associ ated water quality improvements ; examining the efficacy of treatment technology from engineering studies ; and
using water quality models, loading calculations

, and other predictive tools.

Once a state or tribe has determined the HAU C HAU

, there are several different approaches it may wish to consider for articulating the designated use in the relevant water quality standards regulations

. The EPA provides the following examples of how a state may choose to articulate the HAU C The EPA’s intent is for a state o r tribe to have the flexibility to choose its preferred approach for articulating the HAU in regulation

. The*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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16 of 63 EPA provides the following example approaches , but does not intend states and tribes to be limited to only these approaches

. The EPA invites commen ts on other approaches or examples that states and tribes could use when articulating the HAU, or examples of scenarios where the following approaches may not be appropriate. The EPA emphasizes
that states and tribes are not required to develop new use cat egories or subcategories to meet the HAU requirement. :

1. U se a sufficiently refined designated use structure that is already adopted into state or tribal regulation : Because m any states Where a state or tribe already have ha s a sufficiently refined designa ted use structure adopted into state regulations, they could consider adopting the “next best” attainable use and associated criteria that already exists
in the use structure as the HAU C HAU

. For example, consider a state with the following four aquatic lif

e uses : exceptional, high, modified, and limited aquatic life use

— each with associated dissolved oxygen criteria that protect the use

. The state determines through a UAA (based on a factor at §131.10(g)) that a particular stream cannot attain the designate d “high aquatic life use” and associated dissolved oxygen criterion due to a low head dam and resulting impoundment

. Because t he dam cannot be removed or operated in such a way as to attain the dissolved oxygen criteria needed to protect the expected
biolo gical community at the site

, the state adopts the “modified aquatic life use” and
associated dissolved oxygen criterion that are attainable

. to protect the revised use

. The UAA documents that the “modified aquatic life use” and the associated dissolved oxyg en criterion reflect

reflect s the HAU C HAU despite the disturbed condition of the water body.

2. Revise the current designated use structure to include more refined uses and/or sub

categor ies of uses : Some states or authorized tribes may not have a refined d esignated use structure adopted into their state or tribal regulations, but rather have a general use category expressed as a “general aquatic life use

, ” “fish and wildlife use

, ” “recreation

use , ” and so on

. O r, a state may have a refined designated use st ructure, but the use categories are not refined sufficiently enough to accurately reflect the HAU C (e.g., the
HAU C may fall somewhere in between the sub

- categor ies)

. If a state finds that multiple
locations m ight have the same HAU C

, a state If a state or t ribe finds that its only option upon determining that such a general use category is not attainable is to remove it altogether

, a state or tribe may wish to consider revising its current designated use
framework to include more refined uses and/or sub

- cate gor ies

, and the adopt criteria
that to protect such th ose uses

. For example, a state or tribe may be able to adequately demonstrate (consistent with 40 CFR 131.10(g)(2)) that natural conditions or water levels preclude the attainment of a
use and associated w ater quality criteria

. The state or tribe may document that it is
infeasible to attain an aquatic life use associated with fish because the water is naturally

an intermittent or ephemeral water

. . H owever, intermittent and ephemeral streams provide essentia l habitat for different types of aquatic life (e.g., aquatic invertebrates)

. Such an aquatic life use is likely attainable if not already attained

. Therefore, in this
scenario the state or tribe may wish to adopt a refined “intermittent aquatic life use” and
the criteria that t o protect such a that use to reflect the HAU C in its statewide designated
use framework because such a use category reflects the naturally expected aquatic life

use for intermittent streams that could be applied to multiple streams i n the state

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17 of 63 As another example, some states have chosen to refine their use categories to reflect
the varying degrees of biology var ious biolog ical communities that might be expected in a water body

. If a state is interested in revising its current desig nated use structure, it may wish to define its uses based on the composition and structure of the aquatic life expected for each use with associated biological and dissolved oxygen criteria adopted into regulation

. Incorporating such refinements into desig nated uses allows the state to tailor its use designations to reflect the actual biology expected and is implemented in a manner that is consistent with identifying and adopting the HAUC

. biolog ical community expected.

3. Designate a location

- specific use and the adopt criteria that to protect such a that use : A

state or tribe may determine that a use is unattainable for one particular parameter (e.g., altered pH due to highly mineralized geology , or a combined sewer overflow (CSO)

- impacted use ) or suite of p arameters in a specific location

. In such situations, the state o r tribe may choose to adopt a use that more accurately reflects the location

- specific expectations, such as a “ pH limited aquatic life use

, ” a “habitat limited aquatic life use,”
or a “ minera ls limited aq uatic life use.” The state or tribe would then adopt a new set of
criteria that to protect the th at use, but could adopt all the same criteria levels as were protective of the original use, except for the parameter or parameters limiting the
loc ation

- specific use

. Such an approach would not require a state or tribe to add the
location

- specific use in its framework, but it could do so if later if it finds that other waters will fall into the same category.
The concept of HAU C HAU should not to be confused with “site

- specific criteria.” A
site

- specific criterion is designed to protect the current unchanged designated use, but the criterion value may be different from the statewide or otherwise applicable criterion
because it is tailored to account for site

- specific conditions that may cause a given
chemical concentration to have a different effect on one site than on another

. By contrast

, the criterion support ing a newly established highest attainable use is designed to protect
the revised use assoc iated with a different aquatic community expected in the water body

. In addition to today’s proposal requiring states and tribes to adopt the HAU C where a use is removed or revised under part 131.10(g), HAU

, the EPA recommends that states and tribes consid er the HAU C HAU during a triennial review

. If new information becomes available during a triennial review to indicate that a use higher than what is currently designated is attainable

, but the attainable use is not a use specified in section 101(a)(2) of th e Act, states and tribes should revise their WQS to reflect the HAU C

. HAU

. As with the HAU requirement, states and tribes are not required to revise their

current ly established use categories during triennial review to allow for more refined designation o f higher uses, though they may wish to consider doing so.

Revisions to clarify when a UAA is and is not required
The EPA’s proposal also revises §131.10(g) to clarify that the factors at §131.10(g) are only required to be considered when §131.10(j) requir es a UAA. The current language in §131.10(g) is ambiguous on this point and thus has led to confusion as to whether §131.10(g) applies to all use revisions or only those actions addressed in*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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18 of 63 §131.10(j). The EPA’s 1998 ANPRM stated that the EPA’s position, at the time, was that a UAA is not limited to actions addressed in §131.10(j). However, the EPA has implemented the CWA to focus on uses specified in §101(a)(2) and now believes that the better interpretation of its regulations is that the factors in 131 .10(g) are only required to be considered when a state or tribe is demonstrating that a use specified in §101(a)(2) or a subcategory of such a use is not attainable through a UAA. The EPA’s interpretation is supported by §131.10(j), that explains when a UA A is required, and §131.3(g) that
defines a UAA as “a structured scientific assessment of the factors affecting the attainment of the use which may include physical, chemical, biological, and economic factors as described in §131.10(g)

. ” When §§131.3(g), 1 31.10(g) and (j) are read together, it is clear that the factors at §131.10(g) are only required to be considered when
the state or tribe must do a UAA under §131.10(j). Today’s proposal adds language to §131.10(g) and §131.10(j) to clarify the relationsh ip between these two provisions and the intent of these provisions to implement CWA sections 101(a)(2) and 303(c)(2)(A). For all other designated uses, today’s proposal uses the term “uses not specified in section 101(a)(2)” to refer to uses discussed in s ection 303(c)(2)(A) but not included in section 101(a)(2). Section 303(c)(2)(A) and the EPA’s regulation at §131.10(a) requires the state or authorized tribe to take into consideration the “use and value” of water for public water supplies, propagation o f fish and wildlife, recreational purposes , agricu ltural, industrial and other purposes, and also taking into consideration their use and value for navigation. The UAA demonstration satisfies this requirement for uses specified in 101(a)(2). And while sta tes and authorized tribes are not required by regulation to conduct a UAA using factors at §131.10(g) when designating and removing a use not specified in 101(a)(2), the EPA recognizes that UAAs may provide valuable
information to a state or authorized tri be when deciding how to manage their waters and demonstrate consideration of a water’s “use and value.”

Finally, the EPA is proposing to remove clarify §131.10(k ). The EPA’s removal of )

to state when a UAA is not required. S pecifically

, §131.10(k) does not alter the EPA’s regulatory interpretation that states must adopt is revised to articulate that a UAA is not required when a state or authorized tribe designates or has designated uses specified in section 101(a)(2) of the Act unless those uses have been shown to be unattainable. By requiring states to conduct a UAA when designating uses for a water body for the first time, removes a designated use that is not specified in section 101(a)(2) of the Act, when removing a subcategory of such a use, or when a dopting subcategories of uses specified in section 101(a)(2) of the Act that require less or adopts a subcategory that requires
criteria as stringent criteria, §131.10(j) alone makes clear that states must adopt uses specified in section 101(a)(2) of the Ac t unless those uses are shown to be unattainable. This interpretation is further supported by 40 CFR 131.2, 131.5(a)(4), 131.6(a), 131.6(f), and 131.10(g). For these reasons, the EPA considers §131.10( as the previously appli cable criteria

. The current st ructure of 131.10(j)(2) and 131.10( k) duplicative with §131.10(j). could result in situations where a UAA is not required by 131.10(k) but is required by 131.10(j) (2) thus leading to confusion

. The EPA intends to eliminate this confusion by restructuring 13 1.10(k) as proposed

. The EPA invites comments on the proposed addition to o f 40 CFR 131.3(m)

, the proposed amendment to § 131.10 (g) , and and the proposed deletion of amendment s to*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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19 of 63 § 131.10 (g) , §131.10(j) and §131.10(k)

. The EPA also invites comment on any ot her options it should consider or on the interpretations expressed in this section

.

D. Requirements of Triennial Review s

. 1. The EPA Proposal

. The EPA is proposing to amend the triennial review requirements of paragraph (a) of § 131.20 to clarify that where the EPA has published a new or updated CWA section 304(a) criteri a recommendation, a state or tribe shall re

- examine its water quality criteria during its triennial review to determine if any criteria should be revised in light of the any

new or updated CWA se ction 304(a) recommendation criteria recommendation s to assure that the designated use continues use s continue to be protected

. 2. Rationale for Revision

. S ection s 303(a) through (c) of the CWA require that states and tribes adopt WQS applicable to their inte rstate and intrastate waters and that the EPA review and approve or disapprove these standards based on whether they are consistent with the Act. Section 303(c)( 1 ) further requires states and tribes to hold public hearings at least once every 3 years for t

he purpose of reviewing applicable WQS and, as appropriate, modifying and adopting standards

. Any The state or tribe decides w hether and how to modify or adopt its WQS; however, a ny new or revised standards shall be submitted to the EPA for review and appro val or disapproval

. The EPA adopted regulations in 1983 implementing these provisions at 40
CFR 131 CFR 131 .20

. This regulation requires that states and tribes hold a public hearing to review applicable WQS at least once every 3 years (i.e., a “triennial rev iew”) and, as appropriate, modify and adopt standards

. Public hearings on WQS provide an essential opportunity for stakeholders and the general public to participate in the WQS

- setting

process to provide input and raise issues to appropriate officials

. In addition, the regulation requires states and tribes to consider whether any new information has become
available that indicates if uses specified in CWA section 101(a)(2) that were previously
unattainable are now attainable

. 40 CFR 13 1 .20 (c) provides that t he results of these
reviews be submitted to the EPA (see also §131.6 (f) )

. Stakeholders have expressed concern that states and tribes may retain criteria in their WQS that are no longer protective of designated uses for multiple triennial review cycles, despite the availability of new or updated EPA CWA section 304(a) criteria
recommendations

. The While states and tribes are not required to use EPA’s 304(a) criteria recommendations, the EPA shares this concern where particular adopted agrees that it is impo rtant for states and tribes to consider any new or updated 304(a) criteria as part of their triennial review, in order to ensure that s tate or tribal water quality criteria may not reflect updated current science and information that were used to develop new or updated recommended criteria and, as a result, may not fully protect applicable designated uses. In this regard, 40 CFR 131.20(a) requires that any waterbody segment with WQS that do do es not include the uses specified in CWA section 101(a)(2) be re

exa mined and updated if new information becomes available to indicate that previously*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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20 of 63 unattainable CWA section 101(a)(2) uses are now attainable

. However, because 40 CFR 131.20(a) does not include a parallel statement regarding criteria that support these use s , states and tribes may not re

- evaluate their existing criteria once every 3 years to ensure that the criteria continue to be protective of the designated uses , even if when new or updated information such as the EPA’s new or updated 304(a) criteria recom mendations
has become available. As a result, the EPA is proposing to include an explicit reference to 304(a) recommended criteria at 131.20(a)

, to parallel the existing reference to designated uses ensure that new or updated 304(a) criteria are considered during triennial
review

. The EPA invites com ments on the proposed amendments to paragraph (a) of § 131.20

. The EPA also invites comment on any other options it should consider or on the interpretations expressed in this section

.
E. Antidegradation Implementat ion

. As discussed in more detail below, the T he EPA is proposing to amend several provisions of §131.12 related to implementing the antidegradation requirements. These include 1) clarifying the identification of options available to states and tribes when
i dentifying Tier 2 high quality waters, 2) articulating components of a required clarifying
that states and tribes must conduct an alternatives analysis in order to support state and
tribal decision

- making on whether to authorize limited degradation of high quality water, and 3) specifying that implementation methods be adopted as part of a state’s water quality program. Additional conforming changes are also being proposed to §§131.5 and
131.6. states and tribes must develop and make available to the public implementation
methods for their antidegradation policies

. The EPA is also proposing to add language to §131.5(a) describing the EPA’s authority to review and approve or disapprove state

adopted or tribal

- adopted antidegradation policies

. The language at §131.5(a) will further specify that if a state or tribe has chosen to formally adopt implementation methods as water quality standards , the EPA would review whether those implementation methods
are consistent with 131.12.
Background

. S ection 101(a) of the CWA emphasizes the prevention of water pollution and expressly includes the objective “to restor e and maintain the chemical, physical and biological integrity of the N ation’s waters (33 U.S.C. 1251) (emphasis added). The antidegradation requirements th at the EPA incorporated by regulation in 1983 into 40 CFR 131.12 implement the maintenance aspect of CWA section 101(a) and are an essential component of the overall WQS program . Although designated uses and criteria

are the primary tools states and tribes use to achieve the uses specified in CWA section 101(a )(2), ) goals

, antidegradation complements these by providing a framework for maintaining and existing uses

, for protecting waters that are either are attaining or are of a higher quality than necessary to support the CWA 101(a)(2) goals, or are and for protecting state/tribal identified O utstanding N ational R esource W aters (ONRWs). Antidegradation plays a critical role in allowing states and tribes to maintain and protect the valuable resource of high qu ality water by ensuring that decisions to allow a lowering*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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21 of 63 of high quality water are made in a transparent public manner and are based on a sound
technical record.
In the Water Quality Act of 1987, Congress expressly affirmed the principle of antidegradat

ion that is reflected in section 101 of the Act. In those amendments to the CWA, Congress incorporated a reference to antidegradation policies in section 303(d)(4)(B) of the Act (33 U.S.C. 1313(d)(4)(B)): “Standard Attained

– For waters identified under pa

ragraph (1)(A) where the quality of such waters equals or exceeds levels necessary to protect the designated use for such waters or otherwise required by applicable WQS, any effluent limitation based on a total maximum daily load or other
waste load alloca tion established under this section, or any WQS established under this section, or any permitting standard may be revised only if such revision is subject to and
consistent with the antidegradation policy established under this section” (emphasis added). T his provision not only confirms that an antidegradation policy is an integral part of the CWA, but also explains the relationship of the antidegradation policy to other CWA regulatory programs. ( PUD No. 1 of Jefferson County v. Washington Department of Eco logy , 511 U.S. 700, 705 (1994): “A 1987 amendment to the Clean Water Act makes clear that section 303 also contains an ‘antidegradation policy’...Specifically, the Act permits the revision of certain effluent limitations...only if such revision is subject to

a nd consistent with the antidegradation policy established under [CWA section 303] 33 U.S.C. sect. 1313(d)(4)(B)).” High quality water provides support for aquatic life and recreation and supports unique and significant ecologies and species habitat. High qu ality waters can possess a greater diversity of biological species and a more complex community structure than other waters. 14 A ntidegradation reviews are applicable to
revisions to effluent limitations based on a TMDL

, wasteload allocation

, or water qual ity standard, but they are not required for revisions to a TMDL, wasteload allocation, or water quality standard. 15 These attributes confer a special degree of resiliency and resistance to adverse effects, particularly as the nation’s waters face an increas ing degree of stress from anthropogenic influences. Therefore, maintenance and protection of high quality waters has never been more important.
High quality water s provide support for aquatic life and recreation and support unique and significant ecologie s and species habitat

. These attributes confer a special degree of resiliency and resistance to adverse effects, particularly as the nation’s waters face an increasing degree of stress from anthropogenic influences. Therefore, maintenance and protection of Protection of high quality waters has never been more important.

Protection of waters that meet or exceed levels necessary to support the CWA uses
is central to supporting both economic and community growth and sustainability. High quality water contrib utes Such water s contribute to our public health, aquatic ecosystems, drinking water supplies, and to the welfare of families and communities. The health and growth of tourism, recreation, fishing, and businesses and the jobs they create

14 PUD No. 1 of Jefferson County v. Washington Department of Ecology

, 511 U.S. 700, 705 (1994) (“A 1987 amendment to the Clean Water Act makes clear that section 303 also contains an ‘antidegradation policy... ’”).

15 Native Village of Point Hope v. U.S. Env tl. Prot

. Agency , No. 3:11

- cv

- 00200

- TMB, slip op. at 24

- 25 (D. Alaska Sept. 14, 2012).*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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22 of 63 rely on a high qu ality and sustainable source of clean water. Degradation of water quality
results may result in increasing public health risks, declining aquatic communities and ecological diversity, and increasing treatment costs that must be borne by ratepayers and
local governments. Maintenance of high quality waters that exceed levels necessary to support the CWA uses can sometimes save time and economic resources to a community in the long

- term. Using an antidegradation program to prevent the degradation of a water
bod y in the first place is very often may be more cost

- effective and efficient than costly, protracted, and often divisive long

- term restoration efforts. In addition, maintaining a water body in its initial high quality condition helps ensure the preservation of unique attributes that may ultimately be impossible to fully restore in a number of situations.
Currently, 40 CFR 131.12 requires states and tribes to adopt an antidegradation policy and identify implementation methods for that policy

. The state’s or t ribe’s policy must provide protection for all existing uses , hereafter referred to as “Tier 1” protection (40 CFR 40. 131.12(a)(1)). The policy must also require the maintenance and protection of high quality (“Tier 2”) waters unless the state or authorized tribe finds that “allowing
lower water quality is necessary ” to accommodate “ important economic or social development in the area in which the waters are located ,” a process hereby referred to as “Tier 2 review” (40 CFR 40. 131.12(a)(2)). Additionally, the policy must provide for the maintenance and protection of water quality in ONRWs, identified by the state or tribe

, here inafter referred to as “Tier 3” waters

. (40 CFR 40. 131.12(a)(3)). Today’s proposal focuses on different aspects of state and tribal im plementation methods to ensure effective and transparent implementation of Tier 2 high quality water antidegradation protection provisions.
In this regard, the EPA indicated in its 1998 ANPRM that “on a national scale, antidegradation is not being used as effectively as it could be,” a concern that continues today and is echoed by stakeholders who have identified antidegradation as an underu sed component of water quality protection. Although the federal antidegradation regulation is intended to help states and tribes protect and maintain high quality waters, the number of
waters that are declared identified as impaired continues to grow. A recent U.S. Geological Survey study found that “increasing nutrient concentrations were most common in relatively pristi ne streams...” [ “ Nutrients in the Nation’s Streams and Groundwater: National Findings and Implications, 2010 ”; http://pubs.usgs.gov/fs/2010/3078/) .] If antidegradation is not implemented effectively,
the many benefits of high quality waters may be abandoned jeopardized after limited or no consideration of the long

- term consequences of lowering water quality or an
evaluation of the feasible alternatives that might be available to reduce the need to
accommodate i ncreased pollution.

While the EPA has issued guidance in the past to help facilitate state and tribal implementation of the regulatory antidegradation provisions

, the EPA received substantial feedback from stakeholders that existing CWA antidegradation re gulatory provisions and related guidance have not been fully successful in assuring ensuring consistent and effective implementation of Tier 2 high quality water protections. Moreover, state co

- regulators state s have recognize d the limits of substantial na tional antidegradation program reliance on guidance alone as in the key driver area of CWA*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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23 of 63 implementation. Most recently o n March 30, 2011, the Environmental Council of the
States (ECOS) published a resolution en titled “Objection to U.S. Environmental
Prot ection Agency’s Imposition of Interim Guidance, Interim Rules, Draft Policy and Reinterpretation Policy” in which it states that the “EPA should minimize the use of interim guidance, interim rules, draft policy and reinterpretation policy and eliminate the practice of directing its regional or national program managers to require compliance by states with the same in the implementation of delegated programs.” For these and the other reasons discussed above, the EPA is, therefore, revising its regulation to clarify and update current CWA regulatory expectations the requirements for transparent and
effective state and tribal antidegradation implementation.

1. The EPA Proposal

— Part 1: Identification of High Quality Waters.

The EPA is proposing to add paragraph (b) (1) to §131.12 to provide that Tier 2 high quality waters are may be identified on either a parameter

- by

- parameter basis or on a water body

- by

- water body basis, as long as the state or tribal implementation methods

ensure that waters are not excluded from T ier 2 protection based solely on the impairment of a single parameter or group of parameters if any because not all of the uses specified in
CWA section 101(a)(2) is are attained. The EPA ’s established view is that either method of identifying high quality waters is acceptable, but is proposing today to codify that flexibility for states and tribes into regulation. By “ if any of the uses specified in CWA section 101(a)(2 ) is attained” )” the EPA means any of the uses and functions encompassed within the CWA section 101(a)(2) , such as aquatic life support, wildlife support, consumption of aquatic life, and recreation

, is attained . For example, where a cold water fishery use is being attained but recreation in and on the water is not being
attained due to one o r a group of parameters, the water body would still be considered
Tier 2. Once a water body is identified as Tier 2, a state must conduct a T ier 2 review for a proposed lowering of any parameter for which the waterbody is high quality.

. The nationally a

pplicable water quality standards regulation at §131.12 describes high quality waters as those where the quality of the waters exceed levels necessary to support
the propagation of fish, shellfish, and wildlife and recreation in and on the water (i.e., the CWA goals articulated in section 101(a)(2)). States typically use one of two approaches to identify high quality waters. While the EPA specified in the “Water Quality Guidance for the Great Lakes System” that high quality waters subject to that regulation 40 CFR
Part 132 must be identified using a parameter

- by

- parameter approach, the WQS regulation applicable to all states and tribes (at 40 CFR Part 131) does not currently specify how a state or tribe must identify its high quality waters for purposes of th e antidegradation requirements. States and tribes using a parameter

- by

- parameter approach identify which waters are of high quality waters as where for purposes of a T ier 2 review at the time the activity that would lower water quality is proposed. Under this approach, when an activity is proposed that would potentially lower water quality in any high quality water , the state or tribe would determine for which parameters the water quality is better than applicable criteria developed to support the CWA 101( a)(2) use. The parameters considered are those that would be affected by a proposed activity, and
each use s

. Each parameter for which water quality would be lowered by the permitted activity is considered independently . States and

, once a parameter is dete rmined to exist*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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24 of 63 at a level that is better than applicable criteria, the state or tribe would conduct a Tier 2
review for that parameter. In contrast, s tates and tribes using a water body

- by

- water body approach typically identify high quality waters in adva nce on a list by weighing a variety of factors to classify a water body’s overall quality. If an activity is pro p osed that would potentially lower water quality, the state would first determine if that water body is
on its Tier 2 list , and thus eligibl e for Tier 2 review

. The EPA has found, however, that because states and tribes have significant discretion in deciding where to conduct Tier 2 reviews, it is currently possible for high quality waters to be identified on a water body

- by

- water body basis in a manner that the EPA believes may be contrary to the intent of the antidegradation provisions. In some cases, states or tribes have implemented antidegradation such that

, where a water body is listed as impaired on the CWA section 303(d) list for base d on one or more parameters affecting only one of the CWA 101(a)(2) uses

, the state or tribe automatically considers the water no longer high quality for any parameter even if one or more of the uses specified in CWA 101(a)(2) are being attained

. As a res ult, the state or tribe would no longer conduct Tier 2 reviews before allowing a lowering of water quality for any parameter. However, individual Section 303(d) listing for impairment with respect to one parameter is listings
can be a potentially poor indic ator of the overall quality of a surface water . In some cases a water body might be because, although one or more of the uses specified in 101(a)(2) is
listed as impaired for one parameter yet , one or more other uses specified in 101(a)(2) might still off

er sufficiently high overall be attained and the water quality to support recreational or ecological functions at levels may be higher than those that are minimally necessary to support at least one of the uses specified in CWA 101(a)(2). such use(s).
Such a means of identifying high quality waters would categorically deny Tier 2 protection to a water body that is still of high quality overall despite its impairment for one parameter. with respect to other uses specified in CWA 101(a)(2)

. If a water body can be excluded from Tier 2 protection on the basis of even solely
because one parameter of the uses specified in 101(a)(2) is not being attained

, without a holistic evaluation of the water body, it is possible that a large number of state and tribal
waters would never be eligible for subject to Tier 2 review for any parameter

. Y et th ose
waters may in fact be high quality waters relative to some other use

. Thus, such water bodies could be degraded further without a public participation process. For example,

mercury is widely prevalent in U.S. waters and is known to bioaccumul ate in fish tissue

. , thus affecting the water body’s ability to support protection and propagation of aquatic
life

. A recent statistically

- based EPA sampling survey found predator species fish t issue
in 49 percent of the sampled population of lakes in the conterminous United States with surface areas greater than or equal to 1 hectare exceeded the EPA’s recommended 0.3 ppm tissue

- based mercury criterion

. [“ ( “ National Study of Chemical Residues i n Lake Fish Tissue,” EPA 823

– R

– 09

– 006 ]

. )

. If all states and tribes used an approach for identifying high quality water whereby any impairment with respect to one parameter rendered the water body ineligible for Tier 2 protection, almost half of the lakes w ould automatically be excluded from Tier 2 high quality water protection. The EPA’s view is
that this is an overly narrow interpretation of approach would not be consistent with the objectives of the CWA as outlined in and the intent of the antidegradation r egulation.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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25 of 63 The EPA recognizes that there may be multiple ways for a state or tribe to develop a water body

- based approach for identifying high quality waters consistent with the goals
of the CWA and the antidegradation regulation

. The proposed regulatory language would provide that waters cannot be excluded from Tier 2 protection based solely on the impairment of a single parameter or group of parameters where any of the uses specified in CWA 101(a)(2) is in attainment. The EPA understands that in some ca ses, §131.12(a)(2) has been interpreted to mean that if any one of the uses reflecting CWA 101(a)(2) goals is not supported, that the water body as a whole cannot be considered high quality. The regulatory language, however, is derived from the language i n CWA 101(a)(2) which states the interim that specifies it is a national goal to achieve water quality that provides for aquatic life “the protection and propagation of fish, shellfish, and wildlife and provides for recreation

. in an d on the water

. ” The int ent of the th is CWA
statement is to strive towards all of the uses encompassed by that phrase, specified in the provision and not to stop striving towards all of the uses simply because one of them is

not being achieved. The EPA’s proposal and interpretatio n of 40 CFR 131.12(a)(2) is
consistent with the intent of the CWA.
In implementing a protective water body

- by

- water body approach Rather than excluding a water body from Tier 2 protection solely because not all of the uses specified in CWA section 101(a)(2) are attained

, the EPA would expect the state or tribe to consider a combination of chemical, biological , and physical characteristics in identifying high quality waters. In other words, the EPA would expect the state or tribe to use all the
relevant avai lable data to conduct an overall holistic assessment of these characteristics in order to determine whether a water body would receive Tier 2 protection. Some of the factors a state or tribe may consider include, but are not limited to, existing aquatic li fe uses including aquatic assemblages, habitat, hydrology, geomorphic processes, and landscape condition; existing recreational uses and recreational significance; and the overall value and significance of the water body from an ecological and public

- use
p erspective. Numerous tools, such as biological, habitat, hydrologic, geomorphic, and landscape assessments or the environmental impact statement rating system, could be useful to states and tribes in making and supporting these judgments. The EPA invites comments on the proposed addition of paragraph (b)(1) to §131.12. The EPA also invites comments on any other options it should consider.
For purposes of better understanding today’s proposal, consider the following example s

. Water Body A has aquatic l ife and recreational designated uses and is listed as impaired for methylmercury and bacteria , pursuant to CWA section 303(d)

. Under t oday’s proposed rule, a state or tribe using a water body

- by

- water body approach could exclude Water Body A from its Tie r 2 list because the
state or tribe could show that high levels of methylmercury prevent the
attainment of protection and propagation of fish, shellfish and wildlife

, and
that high levels of bacteria prevent attainment of recreation in and on the

water.

W ater Body B has aquatic life and recreational designated uses and is listed pursuant to CWA section 303( d ) as impaired for methylmercury, but not for*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

26 of 63 bacteria or any other pollutant necessary to protect recreation

. Under a water body

- by

- water body approac h, the proposed rule would prohibit the state or tribe from excluding Water Body B from its Tier 2 list solely because the water body cannot attain protection and propagation of aquatic life due to methylmercury

. Water Body B is still attaining recreation in and on the water as specified i n section 101(a)(2) of the Act

. The EPA invites comments on the proposed addition of paragraph (b)(1) to §131.12. Additionally, the EPA is considering whether to specify how a state or tribe determines for which parameter s Tier 2 review must be conducted depending on the approach used to identify high quality waters. The EPA requests comment on whether , once a high quality water is identified, the Tier 2 review process for that water body should differ depending on the app roach used to identify it a s high quality. As the EPA has explained before in the ANPRM and in the “Water Quality Guidance for the Great Lakes System” (40CFR part 132), f

or high quality waters identified through the parameter

- by

- parameter approach, states and tribes conduct Tier 2 review s for all parameters for which the water quality has been identified as better than the applicable criteria developed to support the CWA 101(a)(2) uses. Each parameter for which water quality would be lowered by the permitte d activity is considered independently and, once a parameter is determined to exist at a level that is better than applicable criteria developed to support the CWA 101(a)(2) uses, the state or tribe would conduct a Tier 2 review for that parameter.

The EP A has made a variety of different statements about how Tier 2 review s are conducted once the water body is identified as Tier 2 using a water body

- by

- water body approach

. 16 17 Thus, for the water body

- by

- water body approach t he EPA could specify
that Tier 2 reviews must be conducted for all parameters for which the water quality has been identified as better than the applicable criteria developed to support the CWA 101(a)(2) uses

. Alternat iv ely, the EPA could specify that for waters identified as high quali ty on a water body

- by

- water body basis, Tier 2 reviews are only required for parameters associated with the 101(a)(2) uses currently being supported. For example, in Water Body B above, a Tier 2 review would only be required for each parameter that is bett er than the applicable criteria to protect recreation. And, a Tier 2 review would not be required for any parameter only associated with the aquatic life use (i.e., and not also associated with the recreation use).
The EPA could also specify that states and tribes have discretion on how to conduct
the Tier 2 reviews. The EPA also invites comments on any other options it should
consider or on the interpretations expressed in this section

.

16 See “EPA Region VIII Guidance: Antidegradation Implementation; Requirements, Options, and EPA Recommendations Pertaining to State/Tribal Antidegradation Programs,” August, 1993, page 14, http://water.epa.gov/scitech/swguidance/standards/adeg/upload/Region8_ch2_pg5

- 20.pdf

17 See “Proposed Water Quality Standards for Kentucky,” November 2002, page 68977, http://www.epa.gov/fedrgstr/EPA

- WATER/2002/November/Day

- 14/w28922.htm*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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27 of 63 2. The EPA Proposal

— Part 2: Alternatives Analysis and Selection of an Alternative to Implement.

The EPA is proposing to add paragraph (b)(2) to § 40 CFR 131.12 to ensure that
states and tribes will only make a finding that allowing lower lower ing water quality is

necessary to accommodate important economic or social developme nt , as required in § 131.12(a)(2), after conducting an alternatives analysis . The alternatives analysis must evaluate that evaluate s a range of non

- degrading and minimally degrading practicable
alternatives that have the potential to prevent or minimize the degradation associated with the proposed activity . Today’s proposal also provides that a decision to authorize limited degradation of high quality water will reflect implementation of a feasible alternative that either prevents or minimizes degradation. if a state or tribe can identify any practicable alternatives, the state or tribe must choose one of those alternatives to implement when authorizing a lowering of high water quality

. Section 131.12(a)(2) also provides that high quality water shall be maint ained and protected unless the state or tribe finds (after satisfaction of public participation and intergovernmental coordination requirements) that “allowing lower water quality is necessary to accommodate important economic or social development in the area in
which the waters are located ” (40 CFR 131.12(a)(2)). As discussed previously, this process is called a Tier 2 review. Tier 2 review calls for the state or tribe to investigate two questions: (1) whether “ allowing lower water quality is necessary ,” to accomplish the proposed activity, typically by examining alternatives to the proposed degradation alternative way s of accomplishing the activity through an alternatives analysis; and (2) whether the proposed activity that will result in lower water quali ty will

“ accommodate important economic or social development ,”

, through a socio

- economic analysis. States and tribes may determine the order in which to complete the two aspects of the finding

. In addition, states have discretion to decide there is no ne ed to answer the second question if the answer to the first question is “no.” For example, a state or tribe may choose to first ask whether lowering of water quality is necessary to accomplish the proposed activity , and if the answer is “no,” decide at th at point not to investigate whether the proposed activity will accommodate important economic or social development. While this finding is a state or tribal responsibility, the EPA recognizes that
states and tribes may establish processes requiring the ent ity responsible for conducting the proposed activity to provide information or conduct the necessary evaluations.
Although the existing regulation implies that the state or tribe must have a means of evaluating whether a lowering of water quality is necess ary to accomplish the proposed activity , currently there is no explicit requirement to conduct an alternatives analysis.
E ven if a state or tribe conduct s an alternatives analysis, the regulation do es not specify
which tha t , where there is a practicable alt ernative

, the state or tribe must select to an alternative for implementation

. For these purposes, the term “practicable” means that the
alternatives considered must be implemented available for the proposed activity, technologically possible, able to be don e or put into practice successfully at the site in question, and economically viable

. This lack of specificity can result in situations where a
state or tribe is does not able to fully evaluate less

- degrading or non

- degrading alternatives to the proposed ac tivity, or situations in which the state or tribe may not*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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28 of 63 implement a known less

- degrading or non

- degrading alternative that is feasible
because and thus lacks a reasoned basis for determining if the proposed lowering of an incomplete evaluation to support such alternatives. water quality is necessary to accomplish the proposed activity , or not

. The EPA’s view is that this lack of specificity
can lead to state or tribal decisions to lower water quality without appropriately making a finding that a lowering is necessary, contrary to section 131.12(a)(2).
This issue was considered carefully as part of the development of updated water quality requirements for the Great Lakes states

. in 1995

. The regulation at 40 CFR Part 132, Appendix E, addresses it by requir ing that any entity seeking to degrade high water quality must submit an antidegradation demonstration for consideration by the state. This demonstration includes an analysis identifying any cost

- effective pollution prevention alternatives and techniques

, as well as an analysis identifying alternative or enhanced treatment techniques (and their relative costs) that are available to the entity and that
would eliminate or significantly reduce the extent to which the increased loading results in a lowering of water quality. States and t ribes should tailor the level of detail and documentation in antidegradation reviews to the specific circumstances encountered . The

state or tribe then uses that information to determine whether or not the lowering of water quali ty is necessary.
Under the approach proposed today, the state or tribe would conduct its alternatives analysis by considering a range of available non

- degrading and minimally degrading practica ble alternatives to the proposed activity. Similar to the alte rnatives analysis provided for in 40 CFR Part 132, this evaluation would include a consideration of any
available non

- degrading or minimally degrading cost

- effective pollution prevention alternatives and enhanced treatment techniques, but would not be limi ted to those. For example, alternatives could include no discharge

, pollution prevention measures, process changes, reduction in the scale of the project, advanced or different treatment technologies, water recycling and reuse , land application, seasonal o r controlled discharge options avoiding critical water quality periods, and alternative discharge
locations , if such measures were practicable

. Once the state or tribe has identified a range of practicable alternatives, the state or
tribe would evaluate t

he alternatives in terms of the extent of degradation that would result. By initially considering a range of practicable alternatives that represent a range
from non

- degrading to minimally degrading as opposed to simply identifying the single least degradin g alternative, the state or tribe then has a basis to make the flexibility to select the best alternative among those required finding , considering the implications and technological and economic feasibility practicability of the alternatives more holistical ly, and considering the implications any impacts beyond the direct effects on water quality,
such as cross

- media impacts (e.g., impacts on land due to land application of pollutants found in water). This will allow the state or tribe to determine whether t he lowering of water quality is necessary to accommodate important economic or social development per Part 131.12(a)(2). As reflected in the Great Lakes System regulation at Part 132, the
EPA believes states and tribes should tailor the level of detail and documentation of alternatives analyses in antidegradation reviews to the significance and magnitude of the particular circumstances encountered

.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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29 of 63 The EPA invites comment on the proposed addition of paragraph (b)(2) to §131.12.
The EPA also invites comme nt on any other options it should consider or on the interpretations expressed in this section

. 3. The EPA Proposal

— Part 3: Adopt ing Legally Binding Antidegradation Developing and Making Available to the Public Antidegradation Implementation
Methods

. The EPA is proposing to add paragraph (b) to § 40 CFR 131.12 to specify that states
and tribes adopt must develop and make available to the public antidegradation implementation methods to improve program implementation, ensure consistency with the CWA, and provide transparency as to applicable state and tribal antidegradation
review requirements. The EPA is also making conforming changes to language in §131.5(a) describing the EPA’s authority to review and approve or disapprove state

adopted or tribal

- adopted anti degradation policies . The language in §131.5(a) further specifies that if a s tate or tribe has chosen to formally adopt implementation methods as water quality standards related to antidegradation , the EPA would review whether those implementation method s are consistent with 131.12

. In addition to the proposed requirements in §131.5(a). The EPA is also making conforming changes to §131.6(d). included in today’s proposal, the EPA is considering and requesting comment
on whether the EP A should include a req uirement that antidegradation implementation methods be adopted as WQS and thus subject to the EPA’s review and approval or disapproval. Alternatively, the EPA is considering and requesting comment on whether the EPA should specify that states and tribes m ay, but are not required to, adopt antidegradation implementation methods as WQS.

Stakeholders have raised concerns that some states and tribes have not
identified developed or made publically available antidegradation implementation methods, despite the f

act that the regulation requiring this was established in 1983. Specifically, they are concerned that t he absence of such methods reduces transparency in the implementation of states’ and tribes’ policies, and potentially limits the ability to

ensure prote ct ion of existing uses, high quality waters , and ONRWs to the full extent required by the regulation

. Even where states and tribes have identified antidegradation implementation methods outside of regulation , and which are consistent with 40 CFR 131.12, an absence of legally binding state or tribal methods can impair the ability of states and tribes (as well as the public’s ability ) to ensure the effective and consistent implementation of those methods

. The CWA at section 101 ( e) specifically states that

“ pu blic participation in the development, revision, and enforcement of any regulations, standard, effluent limitation, plan, or program established ...under this Act shall be provided for, encouraged, and assisted.... ” If a state develops antidegradation impl ementation methods outside of regulation, such methods may not be readily available to the public, to provide the public with an opportunity to influence how the state implements its antidegradation requirements, or to give the public an opportunity to

pro vide input into the state’s decisions of how to maintain the quality of its waters. The EPA encourages states and tribes to provide a robust and transparent pro cess for developing and making available to the public their antidegradation implementation
metho ds and for implementing those methods in specific cases.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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30 of 63 Section 501(a) of the CWA (33 U.S.C. 1361(a)) authorizes the EPA Administrator to “prescribe such regulations as are necessary to carry out [her] functions under this Act.” The CWA, under section 303(c), also specifies that the EPA Administrator must review and approve new or revised WQS after determining they are consistent with applicable requirements under the CWA. The EPA believes that antidegradation implementation methods form the fundamental framework for are an important component of implementing antidegradation policies , which are critical components of WQS. As such, requiring

. T hus

, the EPA is considering and requesting comment on
whether the EPA should include a requirement that implemen tation methods to be formally adopted as WQS and thus subject to the EPA’s review and approval or disapproval is necessary for the Administrator to carry out her functions in the CWA. The
EPA’s . Formal adoption of implementa tion methods as WQS, along with EPA review under section 303(c) of the act will A ct

, would help ensure the consistent and effective implementation of the EPA’s state or tribe’s antidegradation provisions so that waters will be maintained and protected in accordance with the objectives of the Act. 18 At the same
time , the EPA acknowledges the primary role of states and tribes in establishing an d implementing water quality standards. The EPA is thus alternat iv ely considering and requesting comment on whether to specify in rule that states an d tribes may, but are not required to, adopt antidegradation implementation methods as WQS subject to EPA approval

. In this case, states and tribes must develop antidegradation implementation methods, and must make them available to the public, but they w ould not be subject to
EPA review and approval or disapproval unless the state or tribe chose to formally adopt them as WQS.
Additionally, because antidegradation is an essential part of WQS

, and state and tribal approaches to implementing antidegradation requirements may have direct implications for NPDES permits

, as well as other federal permits and licenses for activities that affect water quality. Therefore, these implementation approaches The EPA
believes that this may be an additional reason why the re gulations should be established in the same manner as other state and tribal WQS with notice require states and comment rulemaking and tribes to formally adopt, after providing an opportunity for public
involvement on the most appropriate ways to assure eff ective

, and obtain EPA approval
for antidegradation implementation methods

. Lastly, state and tribal antidegradation programs that have antidegradation implementation

. methods adopted into r egulations are more transparent to stakeholders and the public, as well as provid e greater clarity to regulated industry.
Finally, the T he “ Water Quality Guidance for the Great Lakes System ” (40 CFR Part 132) provides that an acceptable antidegradation policy and implementation methods are required elements of a state’s or tribe’s WQS program for waters of the Great Lakes system. That regulation requires that Great Lakes states and tribes adopt provisions into their policy and implementation methods that are consistent with a list of specifications, including details on how high quality waters are to be identified and on the components of antidegradation Tier 2 reviews.

18 As of 2013, the EPA is aware of 25 states that have adopted antidegradation implementation methods entirely into rule.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

31 of 63 Consistent with this “Water Quality Guidance for the Great Lakes System” requirement and for the reasons explained, the EPA is proposing considering and s eeking

comment s on a revision to the antidegradation regulation at 40 CFR 131.12 that would require a state or tribe state s and tribe s to adopt antidegradation implementation method s in order to improve program implementation, ensure consistency with CWA, a nd provide transparency as to applicable state or tribal antidegradation review requirements. The If
the EPA expects were to finalize such a requirement, the EPA would expect that , in order to be consistent with today’s proposal, a state or tribe’s adopted implementation methods
will would describe how it will the state or tribe intend ed to implement each aspect of its policy, consistent with §131.12(a), and as well as how antidegradation decisions
will would be documented such that there will be . This would pr ovide sufficient
information available to so that the public and for the EPA permit review would
understand the extent to ensure that which activities affecting water quality are being authorized consistent with the state’s or tribe’s antidegradation policy and other CWA requirements

. The EPA invites comments on the proposed addition of paragraph (b) to §131.12. The EPA also invites comments on any other options it should consider.
The EPA invites comments on the proposed addition of paragraph (b) to §131 .12

. Currently there is confusion whether the existing regulations require states and tribes to adopt antidegradation implementation methods as WQS. The EPA requests comment on whether the EPA should require, as part of Section 131.12(b), that implementat ion methods be adopted as WQS and thus subject to the EPA’s review and approval or disapproval

. If the EPA makes adoption of implementation methods a requirement, the EPA is also considering corresponding revisions to section 131.6(d). Specifically, t he
E PA requests comment on whether a corresponding revision should be made to section 131.6(d) to clarify that implementation methods are one of the m inimum requirements for a water quality standards submissio n

. Alternatively, the EPA is requesting comment on whether the EPA should explicitly specify in regulation that states and tribes are not required to adopt antidegradation implementation method as WQS. Finally, t he EPA invites comments on any other options it should consider or on the interpretations

exp ressed in this section

. 4. Minimum Elements of an Antidegradation Implementation Method. The EPA’s basis for taking approval or disapproval action on a state’s or a tribe’s antidegradation policy is whether the policy is consistent with the CWA and the water quality standards regulations at 40 CFR § 131.12. While the current regulations do not require states or tribes to adopt antidegradation implementation methods as water quality standards, if a state or tribe chooses to do so , t he EPA would review a state ’s or tribe’s implementation methods on the basis of ensuring that the methods do not undermine the state’s or tribe’s own antidegradation policy. Today’s proposed revised antidegradation regulation continues to provide for a wide range of state and triba l approaches to
anti de gradation . States and tribes have considerable discretion in how they address each of the elements of antidegradation implementation specified in the regulation. To facilitate development of implementation methods, the EPA is providi ng in this preamble a list of the areas states’ and tribes’ implementation methods would need to address, at a*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

32 of 63 minimum, to be consistent with the WQS regulation. This list is based on requirements currently found in the federal antidegradation regulation, as well as proposed requirements found in today’s action. Again, how states and tribes address each of these
areas in the methods is within their discretion

, as long as it does not undermine their antidegradation policy or is otherwise inconsistent with the Act or EPA’s regulations

.

1) Scope and applicability : the state or tribe will should describe the scope and applicability of their antidegradation policy

. 2) Existing uses protection : t he state or tribe will ensure the maintenance and protection of all exist

ing uses and the water quality necessary to protect the existing uses.

3) High quality water protection

a) Identification of high quality water : the state or tribe will identify high quality water s on either a parameter

- by

- parameter basis or a water body

by

- wat er body basis , as long as the state state ’s or trib e’s implementation
methods ensure that waters are not excluded from Tier 2 protection based solely on the impairment of a single parameter or group of parameters if

any because not all of the uses specified in CWA section 101(a)(2) is are attained.

b) Alternatives analysis and social/economic analysis : the state or tribe will determine whether the lowering of water quality that would result from a proposed activity is necessary to accommodate important economic or social development in the area in which the waters are located through an alternatives analysis and a social and/ or economic analysis.

c) Public participation and intergovernmental coordination : the state or tribe will ensure full satisfaction of the publi c participation and intergovernmental coordination provisions of the state’s or tribe’s continuing planning process in any finding that will allow lower water quality.

d) Requirements for point and nonpoint sources : the state or tribe will ensure
that there s hall be achieved the highest statutory and regulatory requirements for all new and existing point sources and all cost

- effective and reasonable best management practices for nonpoint source control when allowing a lowering of water quality.

4) ONRW protectio n : the state or tribe will ensure the maintenance and protection of water quality for waters identified as ONRWs.

5) Thermal Discharges : T he state or tribe will ensure consistency with Section 316 of the Act in cases that involve potential water quality impair ment associated with thermal discharges.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

33 of 63 5. How Does This Proposal Affect States or Authorized Tribes for Which the EPA has Promulgated Antidegradation Implementation Methods?

The revised WQS regulation will appl y to all states , authorized tribes, and territo ries

, regardless of whether or not the EPA has previously promulgated an antidegradation policy or implementation methods for the state or tribe

. Therefore, a ny previously promulgated antidegradation policies or implementation methods may require revision to meet the new requirements of Section 131.12.

F. WQS Variances

. 1. Background

.
T he EPA has encouraged states and tribes to utilize WQS variances 19 (hereafter referred to as “variances”)

, where appropriate, as an important WQS tool that provides
states and t

ribes time to make progress towards attaining a designated use and criteria

. While the T he EPA has offered input and support for variances through Office of General Counsel legal decisions 20 , guidance, memoranda, and approval actions for many years explainin g

. These documents specifically explain the EPA’s interpretation that variances may be granted if the state or authorized tribe demonstrates that the variance meets the same requirements as a permanent 21 designated use change, even though the WQS regulation lacks explicit provisions on the issue. As a result, the EPA has heard from states, tribes, and stakeholders that there is confusion, inconsistency, and mixed interpretations about how, when, and where variances may be used appropriately

, particularly wit

h regard to nutrients and implementation of numeric nutrient criteria. (e.g. , with regard to nutrients and implementation of numeric nutrient criteria )

. In particular, the EPA has found that this WQS tool is underutilized. For example, since tracking WQS variance submittals in 2004, four EPA Regions have never received a WQS variance submittal. However, the EPA has found that where states and tribes and their stakeholders have more specificity in regulation regarding variances, such as those
states and tri

bes covered by the “Water Quality Guidance for the Great Lakes System” (i.e., Great Lakes Initiative) rulemaking at 40 CFR Part 132, they are successfully adopting and submitting WQS variances. This proposed rule is intended to provide this specificity nat ionally

. The CWA specifies a national goal at Section 101(a) to restore and maintain the chemical, physical and biological integrity of the Nation’s waters and an interim goal in Section 101(a)(2) that, “wherever attainable,” water quality provide for the protection and propagation of fish, shellfish, and wildlife and provides for recreation in and on the

19 The EPA distinguishes WQS variance s, as described in today’s proposed rulemaking, from variances as described in the EPA’s permitting regulation at §122.2 and §125.3

. 20 The EPA’s memoranda discussing variances are available on the EPA’s website at http://water.epa.gov/scitech/swguidance/waterquality/standards/handbook/chapter05.cfm#section3

. 21 “Permanent” is used here and throughout this section to contrast between the time

- lim ited nature of variances and designated use changes in accordance with 40 CFR 131.10 that require a revision to a State’s water quality standards to reverse. In accordance with 40 CFR 131.20, waters that “do not include the uses specified in section 101(a )(2) of the Act shall be re

- examined every three years to determine if 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 acc ordingly.”*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

34 of 63 water. In implementing the CWA, the regulation at 40 CFR131 CFR 131 .10 establishes provisions specifying how a state may determine where relating to the man agement of designated uses specified in section 101(a)(2) or subcategories of such uses are not ultimately attainable . In 1977, an Office of General Counsel legal decision considered the practice of temporarily downgrading the WQS as it applies to a specif ic discharger rather than permanently downgrading an entire water body or waterbody segment(s) and determined that such a practice is acceptable under the EPA’s existing regulations as long

as it the variance is adopted consistent with the substantive and p rocedural requirements for permanently downgrading a designated use. In other words, a state or tribe may change the standard in a more targeted way rather than remove the standard all together so long as the state is able to show that achieving the standa rd is “unattainable” for the
term of the variance.

. The EPA further explained that it would be appropriate to grant a variance based on any of the six factors for removing a designated use as listed in section §131.10(g) 22

. The state practice described in the Office of General Counsel legal decision became known as adopting a “variance” to WQS. Specifically, a variance is a time

- lim ited designated use and criterion that is targeted to a specific pollutant(s), source(s), and /or water body or waterbody segme nt(s) that reflects the highest attainable condition during the specified time period . Variances are different from changes to the designated use and associated criteria in that they are intended as a mechanism to provide time for states

, authorized tribes and stakeholders to implement adaptive management approaches that
will improve water quality where the designated use and criterion currently in place are not being met , but still retain the designated use as a long term goal . Variances are
limited in sco pe . For example

, variances typically address one pollutant and are an environmentally preferable tool over a designated use change because variances retain designated use protection for all pollutants as they apply to all sources with the exception
of tho se specified in the variance. Even the discharger who is given a variance for one particular constituent (e.g., chlorine) will be is required to meet the applicable criteria for all other constituents. The variance is given for a limited time period and the discharger
must either meet the WQS upon the expiration of this time period or must make a new demonstration of “unattainability.” the state or tribe must adopt a new variance or re

justify the current variance subject to EPA review and approval. Thus, whe n properly applied, a variance can lead to improved water quality over time, and in some cases, full attainment of designated uses due to advances in treatment technologies, control practices, or other changes in circumstances, thereby furthering the objec tives of the
CWA.
Presently, the nationally applicable WQS regulation only mention s variances in 40
CFR 131.13 . This provision indicates that variance policies are general policies affecting
the application and implementation of WQS , and that states and t ribes may include
variances policies in their state and tribal standards

, at their discretion

. The EPA provided variance procedure requirements when it promulgated WQS for Kansas (§131.34(c)),

22 Variances in Water Quality Standards, March 15, 1985, Memo from Edwin L. Johnson, Director of the Office of Water Regulations and Standards, to the Regional Water Division Directors and the Advanced Notice of Proposed Rulemaking at 63 FR 36759

.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

35 of 63 Puerto Rico (§131.40(c)), and the Great Lakes System (§ ( 40 CFR Part 132, Appendix F, Procedure 2). However, the nationally applicable regulation does not explicitly address questions such as when a variance can be granted, how a variance must be justified, what is required during the term of the variance, or for how l ong a variance can be granted.
While the nationally applicable regulation do es not provide specifics on variances,
the T he EPA ’s longstanding established position is has been that variances , as time

- limited
and narrow use revisions

, are appropriate WQS tools that must go through public review and require the EPA ’s review and approval

. 23 This position is supported by the EPA’s longstanding practice regarding variances. 24 This position is supported by the EPA’s practice regarding variances. 25 Today, we recognize a more direct link to the CWA Section 101(a) goal of “restore and maintain ” for variances

. WQS variances are consistent with the “restore” aspect of the goal since variances are intended to allow incremental environmental progress in achieving designated uses. As described in detail
in section III.F.2

, the EPA is proposing a set of variance provisions that are in many ways parallel to the regulations in 131.10, but are tailored to better fit the circumstances where variances will allow for environmental pr ogress toward achieving the goals of the CWA.
The EPA notes that its understanding and past practice allows for variances whether or not those uses are specified in Section 101(a)(2), however, the demonstration may differ.
States and tribes have expressed that v ariances are useful in a number of
circumstances where the state or tribe has demonstrated that the designated use and criterion are not attainable today (or for a limited period of time), but may be attainable in the longer term. Examples include wh en :
Attaining th e designated use and criterion is not feasible under the current conditions (e.g.

, attainment of numeric nutrient criteria would result in substantial and widespread social and economic impact) but could be feasible
should circumstances cha nge (e.g.

, development of less expensive pollution control technology or a change in local economic conditions ); or
The state or tribe does not know whether the designated use and criterion can be
attained , but feasible progress toward attaining the design ated use and criterion can still be made by implementing known controls and tracking environmental improvements (e.g., complex use attainability challenges involving legacy pollutants).
There are a variety of tools available to states , tribes and discharg ers that can provide time to meet regulatory requirements; however, the most common regulatory tools

23 The EPA addressed variances in its Kansas and Puerto Rico promulgations and part 132 Great Lakes Water Quality Guidance regulations (Published March 23, 1995, http:// www. ecfr. gpoaccess. gov/cgi /t/text

bin /text

idx?c=ecfr& SID=105020ee867fe139a8d0965b23bf7557& rgn=div5&view=text&node=40: 21 23 .0.1.1.19&i
dno=40 ) ).

24 The EPA’s WQS Handbook, 1994: http://water.epa.gov/scitech/swguidance/waterquality/standards/handbook/chapter05.cfm#section3

25 The EPA’s WQS Handbook, 1994: http://water.epa.gov/scitech/swguid ance/standards/handbook/chapter05.cfm#section3*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

36 of 63 considered are variances and permit compliance schedules. Which tool is appropriate depends upon the circumstances. Variances can be appropriate to address situations
where it is known that the designated use and criterion are unattainable today (or for a limited period of time) but feasible progress could be made toward attaining the designated use and criterion. A permit compliance schedule , on the other h and, may be appropriate when the use is attainable, but the permittee needs additional time to modify or upgrade treatment facilities in order to meet its WQBEL such that a schedule and resulting milestones will lead to compliance “as soon as possible” wit h the WQBEL based on the currently applicable WQS. (See CWA section 507(17) for a definition of “Schedules of compliance” and 40 CFR 122.47 ).

The EPA is proposing and soliciting comment on revisions to the WQS regulation
that will provide more specificity and clearer requirements on the development and use of
variances. Such revisions will establish requirements to help improve water quality by allowing states and tribes time to work with stakeholders to address any challenges and
uncertainties associated with attaining the designated use and the associated criteri on. These revisions will also provide assurance that further feasible progress toward the designated use and criterion will be made during the variance period

. The EPA ’s propos ed regulatory provi sions for variances at §131.14 address the following key topic areas: (1) applicability, (2) submission requirements, (3) implementing variances, (4) how to renew a variance, and (5) conforming changes to §131.34 and §131.40. A discussion of today’s propos al and the rationale for each proposed regulatory provision follows.

2. Rationale and the EPA Proposal

.

a. Part 1

—

Applicability of Variances

.
i. The scope of a variance.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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37 of 63 To provide clarity, promote consistency, and avoid conflicting interpretations of WQS va riances, the EPA is proposing a new regulatory definition for WQS variance at §131.14 . A w ater quality standards variance (WQS variance) is a time

- limited use and
criteri on for a specified pollutant(s)

, permittee(s) , and/or water body or waterbody segment (s) that reflect the highest attainable condition during the specified time period

. Variances are WQS subject to the EPA review and approval or disapproval and must be consistent with §131.14. As WQS, variances are subject to §131.20(a) and thus must be

r eviewed on a triennial basis

. S tates and tribes continue to have broad discretion on the

structure of their triennial reviews and can decide whether and how to modify or adopt WQS as a result of a triennial review. The EPA is also proposing to specify at §131.14(a)(1) that a ll other applicable water quality standards not specifically addressed by the variance remain applicable.
Typically, states find variances that apply to a specific pollutant(s) and a discharger (s) to be most useful. If a state believ es that the designated use and criterion is
unattainable for a period of time because the discharger cannot meet its WQBEL, the state may grant a discharger

- specific variance so long as the variance is consistent with
the CWA and implementing regulation

. Similarly, if a state or tribe believes that the designated use and criterion is unattainable as it applies to multiple permittees because they are all experiencing the

same challenges in meeting their WQBELs for the same pollutant for the same reason

,
re gardless of whether or not they are located on the same water body

, a state or tribe may streamline its variance process by granting one variance that applies to all these dischargers (i.e., a multiple discharger variance) so long as the variance is consis tent with the CWA and implementing regulation regulation s

. The EPA recognized the utility of a multiple discharger variance and its distinction from an individual discharger variance in
the “ Water Quality Guidance for the Great Lakes System : Supplementary I nformation Document” (SID; EPA

– 820

– B

– 95

– 001; March 1995). The EPA provided further clarification regarding multiple discharger variances in the “Water Quality Standards for the State of Florida’s Lakes and Flowing Waters; Final Rule” (75 FR 75761). 75790 )

. More recently in March 2013

, the EPA provided a set of frequently asked questions to assist states and tribes in developing credible rationales for multiple discharger variances.

26

W here a state or tribe can demonstrate that the designated use and crite rion currently in place for a specific pollutant is not attainable immediately (or for a limited period of time) for an entire water body, the state or tribe may adopt a waterbody variance as an alternative to a designated use change for the water body so long as the variance is consistent with the CWA and implementing regulation. In such an instance, the variance applies to the waterbody water body itself, rather than to any specific source or sources.
A waterbody variance provides time for the state or tr ibe to work with both point and

26 Discharger

- specific Variances on a Broader Scale: Developing Credible Rationales for Variances that Apply to Multiple Dischargers , EPA

- 820

- F

- 13

- 012, March 2013 ( http://water.epa.gov/scitech/swguidance/stand ards/upload/Discharger

- specific

- Variances

- on

- a

- Broader

Scale

- Developing

- Credible

- Rationales

- for

- Variances

- that

- Apply

- to

- Multiple

- Dischargers

- Frequently

Asked

- Questions.pdf

) Comment [SHPD3]: Updated for accuracy. Chang es were not made at the suggestion or recommendation of OIRA during EO 12866 Review.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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3 8 of 63 nonpoint sources to determine and implement adaptive management approaches on a waterbody/watershed scale to achieve pollutant reductions and strive toward attaining the

water body’s designated use and associated criteria.

States and tribes retain the discretion of as to whether, when

, and where to adopt
variances

. However, consistent with the EPA’s current position, should a state or tribe
choose to grant a variance , it is subject to the EPA ’s review and approval or disapp roval

—

regardless of the scope of the variance.

The EPA invites comment on its proposal and on any other options it should
consider

. or on the interpretations expressed in this section. The EPA also invites comment on the applicability of variances to indi vidual dischargers, multiple dischargers
and to entire water bodies.

ii. An EPA approved variance is only applicable for CWA section 402 permitting purposes and in issuing certifications under section 401 of the
Act

. The proposed WQS regulation at 40 CFR 1 31.14(a)(2) will would specify that where

a state or authorized tribe adopts a varia nce, the s tate or tribal regulations must continue

to reflect the underlying designated use and criterion unless the state or tribe adopts and
the EPA approves a revision to the designated use and criterion as consistent with §131.10 or §131.11

. The int erim requirements specified in the variance apply only for
CWA section 402 permitting purposes and in issuing certifications under section 401 of
the Act for the pollutant(s), permittee(s) and /or waterbody or water body or waterbody segment(s) covered by the variance

. To date, the EPA ’s available guidance has characterized variances as temporary changes to the designated use; however, such a characterization might imply that th e variance replaces the designated use while the variance is in effect. This has led to conflicting interpretations of how variances affect the implementation of WQS through CWA programs , such as NPDES permits and the CWA 303(d) requirements.

The CWA an d implementing regulation direct the states to add waters that are not attaining any applicable WQS to their 303(d) impaired waters list. Specifically, CWA section 303(d)(1)(A) states that “each state shall identify those waters within its
boundaries for w hich the effluent limitations required by section 301(b)(1)(A) and section 301(b)(1)(B) of this title are not stringent enough to implement any water quality
standards applicable to such waters”(emphasis added). Stakeholders have expressed
concern that if the interim requirements do not replace the designated use and criterion, there will effectively be two WQS applicable for purposes of implementing the CWA section 303(d) program where a variance has been approved. However, the interim requirements do not replace the designated use and criteria for the water body as a whole. Discharger

- specific variances affect the development of WQBELs for the discharger(s) specified in the variance; they do not affect the designated use and criterion that apply to
the res t of the water body. In addition, variances are time

- limited and intended as a tool to facilitate water quality improvements

, not to revise the long term goals for a waterbody water body . Therefore, any implementation of CWA section 303(d) must*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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39 of 63 continue t o be based on the underlying designated uses and criteria for the waterbody water body rather than the interim requirements

. By requiring state and tribal regulations to maintain the underlying designated use and criterion where a variance is approved, th e proposed regulation will ensure it is clear
that the interim requirements associated with a variance do not replace the designated use and criterion. This will, in turn, facilitate a consistent interpretation regarding how variances affect the implementa tion of WQS through the various CWA programs and how variances are to be used to support feasible progress toward attaining the underlying designated use and criteria.

The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in this section

.
iii. Relationship to technology

- based requirements in CWA sections 301(b) and
306

. The EPA is proposing to add paragraph (a)(3) to 40 CFR 131.14 to s pecify that a
variance shall not be granted if the desig nated use and criterion can be achieved by implementing technology

- based effluent limits required under sections 301(b) and 306 of
the Act.
As with designated use changes, v ariances are not permissible if the WQS can be attained by implementing technology

- based effluent limits required under section 301(b)
and 306 of the Act. Section 301(b)(1)(A), (B), and section 306 of the Act provide for technology

- based requirements through effluent limitations guidelines and new source performance standards. These tec hnology

- based requirements represent the minimum level of control that must be imposed in a permit (40 CFR 125.3). Because variances are
allowed only where the designated use and criterion are demonstrated to be unattainable during the term of the variance , it would not be appropriate to use a variance if the designated use and criterion can be attained by implementing the technology

- based requirements of the Act

. The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in this section

. b. Part 2

— Submission Requirements

. This section describes the relevant information that a state or authorized tribe must submit to the EPA when requesting the EPA ’s review and approval of a variance.

i. Component

s of a Variance

. 1. Identifying information

– pollutant(s), permittee(s ) , location.

The EPA is proposing to add paragraph (b)(1)(i) at 40 CFR 131.14 requiring states and authorized tribes to identify, in the variance, the pollutant(s) , the permitt ee(s), an d/or the water body or waterbody segment(s) to which the variance applies.
Today’s proposed regulatory revision will require all variances to specify for what,
to whom

, and/or where the variance applies, which will help ensure full transparency and publi c participation on the applicability and scope of the variance . This will alleviate any*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

40 of 63 inconsistencies in the way states and tribes have articulated where, when and how the variance applies.

The EPA invites comment on its proposal and on any other option s it should
consider or on the interpretations expressed in this section

. 2. Numeric interim r equirements that apply during a variance

. The EPA is proposing to add paragraph (b)(1)(ii) at 40 CFR 131.14 to require that a
variance must specify (1) the highes t attainable interim use and numeric criterion that will apply during the term of the variance or (2) a n interim numeric water quality

- based effluent condition that reflects the highest attainable condition for a specific permittee(s) during the term of th e variance. Neither (1) nor (2) shall result in any lowering of the currently attained water quality, unless a time

- limited lowering of water quality is necessary during the term of a variance for restoration activities, consistent with §131.14(b)(2)(ii).

A s variances have been implemented to date, some states and tribes have not identified in the variance the interim requirements that shall apply for permitting

purposes during the term of the variance , but rather only established WQBELs representing curre nt effluent quality in the relevant NPDES permits.

. Specifying the
interim requirements to be met during the variance will provide the legal basis for permit
writers to develop permit limits that derive from and comply with a WQS, as required by the permit ting regulations at 40 CFR 122.44(d)(vii)(A).

As discussed in Section III. C, the EPA is proposing a requirement that a states state or tribe adopt s the highest attainable use and the criteria that protect such a use closest to the 101(a)(2) goals when it h as demonstrated that the use specified in CWA section 101(a)(2) or a subcategory of such a use is not attainable based on a UAA. The EPA is proposing that the same a similar requirement apply to variances such that if states or tribes can demonstrate that the designated a use and criterion are specified in section 101(a)(2) or subcategory of such as use is not attainable for the variance period, then the

state or tribe must adop t a variance reflecting the highest attainable condition during the
term of the v ariance. Such a requirement ensures that feasible progress will be made towards the designated use and criteri on the criterion to protect that use during the period
of the variance

. Requiring that states and tribes establish interim requirements that apply for purposes
of CWA section 402 permitting and in issuing certifications under section 401 of the Act

, and that such requirements reflect the highest attainable condition during the variance

, creates a framework for variances to provide states and tribes with time to implement adaptive management approaches that drive progress towards meeting the designated use and criterion in a transparent and accountable manner

– a key environmental benefit of a
variance. This is consistent with previous EPA statements in the EPA’s WQS H andbook
and 1998 ANPRM that discuss the EPA’s position regarding the progress to be made during the term of the variance towards attaining the designated use and criterion. 27

27 The EPA’s 1994 WQS Handbook stated that “EPA has approved state adopted variances in the past and will continue to do so if ...reasonable progress is being made toward meeting the standards.” The EPA’s*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

41 of 63 A state’s or tribe’s determination or identification of the hig hest attainable interim use need not be complex. A state or tribe could simply include the phrase “variance affected” or “variance modified” to the current use description or the state or tribe could describe the interim use by identifying the parameter in cluded in the variance, such as “pH

- limited” use as a way to provide transparency. To determine the highest attainable numeric criterion, a state S tates and tribes may find it appropriate to adopt such “variance modified” uses as the highest attainable int erim use, rather than adopting an alternate use from the state or tribe’s current use classification system, as they might be more likely to do if they were making a permanent change to a designated use. T o determine the
numeric criterion that protects the highest attainable interim use , a state or tribe shall determine the condition that is both feasible to attain and closest to the protection afforded by the designated use and criteria. A state’s or tribe’s determination of the highest attainable conditi on and numeric interim requirements to apply during a waterbody variance should include consideration and evaluation of pollutant reductions from all contributing sources . This could include an evaluation of the point source controls, pollutant minimizati on plans and NPS pollutant reductions that could be
achieved in the waterbody water body

. Rather than identifying the highest attainable interim use and interim numeric criterion, a state or tribe may choose to specify in its variance that the applicable in terim water quality standard shall be defined by a numeric water quality

- based effluent condition that reflects the highest attainable condition for a specific permittee(s) during
the term of the variance. Such an approach If current effluent quality repre sents the highest attainable condition for a specific permittee(s), then this would become the interim requirement during the term of the variance. Adopting a numeric effluent
condition that re f

lects the highest attainable condition is reasonable because t he resulting instream concentration reflects the highest attainable interim use and interim criterion
and

, therefore, the interim numeric effluent condition is acting as a surrogate for the
interim use and interim criterion . In situations where a variance addresses a pollutant(s) for which no feasible wastewater treatment option can be identified, a n interim numeric water quality

- based effluent condition reflecting the levels currently achievable and a requirement to develop and implement a Pollutant Minimi zation Program (PMP) 28 together would constitute the highest attainable effluent condition.

The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in this section

. 3. Expiration date

. The EP A is proposing to add paragraph (b)(1)(iii) at 40 CFR 131.14 to require that

a ll variances must include an expiration date and that variances must be as short as

1998 ANPRM indicated that the EPA was considering revising its regulations to include a requirement that before a variance may be granted the applicant must include documentation that “...reasonable progress will be made toward meeting the underlying or original standard.” The EPA did not propose a revised regulation at that time.

28 A PMP is a structured process to reduce loadings of a pollu tant by identifying, preventing and reducing loadings, improving processes and improving wastewater treatment.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

42 of 63 possible but expire no later than 10 years after the date the state or tribe adopts the
varian ce, consistent with §131.14(b)(2 ).

It is the EPA’s longstanding position that variances V ariances are time

- limited; therefore, in order to promote consistency and clarity and to ensure that variances are truly time

- limited, the EPA is proposing that all var iances include an explicit expiration date. Such expiration date must be consistent with the demonstration that a variance is needed for a specified period of time based on one of the factors identified in proposed §131.14(b)(2) , must be as short as possi ble, and cannot exceed 10 years. Establishing an expiration date will ensure that the conditions of a variance will be thoroughly re

evaluated and subject to a public review on a regular and predictable basis to determine (1) whether conditions have change d such that the designated use and criterion are now attainable ; (2) whether new or additional information has become available to indicate
that the designated use and criterion are not attainable in the future (i.e.

, data or information supports a use cha nge/refinement) ; or (3) whether feasible progress is being
made toward the designated use and cr i t erion and that additional time is needed to make further progress (i.e., whether a variance may be renewed).

The EPA believes that up to 10 years is a reason able duration for a variance, as it represents two 5

- year NPDES permit terms and provides adequate opportunity to implement measures to make feasible progress. A maximum of 10 years is also s ufficient to reflect changing circumstances, such as the availabi lity of new economic information or affordable treatment technology that may impact whether or not a variance is still
warranted.

The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in th is section

.
ii. Demonstrating the need for a variance

– supporting documentation

. The EPA is proposing to add paragraph (b)(2) at 40 CFR 131.14 to specify that in
order to document that a variance is needed , the state for uses specified in s ection 101(a)(2 ) or sub

- categories of such uses , the state or tribe must demonstrate that atta ining the designated use and criterion is not feasible during the term of the variance because of one of the factors listed in §131.10(g) or because actions necessary to facilit ate restoration through dam removal or other significant wetland or stream reconfiguration activities preclude attainm ent of the designated use and criterion while the action s are being implemented.

The regulation at 40 CFR 131.10(g) identifies six factor s that may be used to
demonstrate , through a UAA, when a use specified in section 101(a)(2) of the Act, or a subcategory of such a use

, is unattainable. The EPA’s current position (and its longstanding practice) is that one of these same §131.10(g) “attain ability” factors must be used by states and tribes to justify why and for how long a variance is necessary

. for uses specified in s ection 101(a)(2) or sub

- categories of such uses

. In developing this proposed regulation, the EPA considered other situation s where a variance may be appropriate and the EPA concluded that the current § 131.10(g) factors do not accommodate situations where a variance may be necessary to facilitate short

- term*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

43 of 63 efforts to restore the natural physical features (i.e., natural geomorp hology ) of a system

. Specifically, this is meant to address the situation when a time

- limited exceedance of a
criterion m ight be expected whil e efforts for dam removal or significant wetlands or

stream reconfiguration/restoration efforts are underway to fa cilitate restor ation of the natural physical features of a water body. The proposed new factor is intended only to cover the length of time necessary to remove the dam or the length of time in which stream restoration activities are actively on

- going. Alt hough such a variance might not directly impact a NPDES permittee, it may be necessary to allow states and tribes to certify that any federal license or permit that may result in the discharge of pollutants in state/tribal jurisdiction will still meet thei r state/tribal WQS, under CWA section 401.
In determining whether or not to grant a variance for uses specified in s ection 101(a)(2) and sub

- categories of such uses (and subsequently submit such a variance to
the EPA for review and approval), the state or tribe must consider and evaluate whether
the available information supports a conclusion that the designated use and criteria are not feasible to attain during the variance period based on one of the factors listed in §131.14(b)(2 ) 29

. For example, a )

. A f actor that has been commonly used to demonstrate the need for a discharger specific variance is § 131.10(g)(6)

, which provides that a state or tribe may remove a designated use if “[c]ontrols more stringent than those required by sections 301(b) and
306 o f the Act would result in substantial and widespread economic and social impact.” The Interim Economic Guidance for Water Quality Standards, published March 1995 (see http://water.ep a.gov/scitech/swguidance/standards/economics/ ) provides guidance on the types of information that a state or tribe should consider evaluating and include in its record to support a variance based on §131.10(g)(6). 30

T he state’s or tribe’s record for grant ing a variance based on “Human caused conditions or sources of pollution prevent the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place” 31

may include, but not be limited to, consideration and evaluation of the following types of
available information:

Monitoring data to determine the current ambient conditions.

Data/maps showing the geographical extent of the problem.

Engineering studies and literature of the relevant remediation alternat ives and best management practices that could be implemented and documentation
that none of the alternatives or practices, if implemented, would result in attaining the designated use and criteria within the variance timeframe.

29 § 131.14(b)(2) includes a proposed new factor allowing states to demonstrate that a variance is needed while efforts to remove a dam or signifi cant wetlands or stream reconfiguration/restoration efforts are underway.

30 The §131.10(g)(6) analysis would include costs of point source controls and the impacts on the surrounding community.

31 As specified in §131.10(g)(3) and cross

- referenced in §131. 14(b)(2)(i).*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

44 of 63 Description, with supporting information from the scientific literature, of the environmental impacts associated with the remedial alternatives and an analysis of what could be done in an environmentally safe manner. Such an analysis would facilitate a determination of whether the h uman caused
condition or source of pollution would cause more environmental harm to remedy than to leave in place.

Modeling data showing the associated pollutant reductions achievable within the timeframe of the variance compared to reductions needed to a chieve the designated use and criteria.

It is the EPA’s position that a A variance should be a transparent mechanism t hat
allow s a state , tribe or discharger a defined period of time to conduct any necessary
studies so long as the state or tribe demonstrate s that §131.14(b)(2) is met the need for the variance in accordance with the regulations and the state or tribe retains the applicable criteria for all other pollutant s. The EPA commonly receives questions about whether permit compliance schedules can be us ed for this purpose

. The EPA’s position is that permit P ermit compliance schedules may only be used in situations where time is needed for a permittee to come into compliance with the WQBEL in the permit , not to provide time to address uncertainty regardin g the appropriateness or attainability of the WQS.

The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in this section

.
iii. Identifying and documenting the controls for other sources rel ated to the pollutant(s) and location(s) specified in a waterbody variance that could be implemented

. The EPA is proposing to add paragraph (b)(3) at §131.14 to specify that, in addition to the other requirements under 131.14(b), for a waterbody variance

, (one not limited to a specific discharger or dischargers)

, a state or tribe must include an identification and
documentation of any cost

- effective and reasonable BMPs for nonpoint sources related to the pollutant(s) and location(s) specified in the varianc e that could be implemented water body wide to make progress towards attaining the designated use and criterion. A s tate or tribe must provide public notice and comment for a n y such documentation.
Because other sources of pollution (e.g., nonpoint sources ) can have a significant bearing on whether the designated use and associated criterion for the entire water bo d y are attainable, it is essential for states and tribes to consider and provide information to the public regarding the impact that controlling other sources through application of cost

effective and reasonable BMPs c ould have on water quality before granting a waterbody variance. Doing so could inform the state’s or tribe’s assessment of what interim actions may be needed to make feasible progres s towards attaining the designated use and criterion related to the pollutant(s) and location(s) specified in the variance, as well as what the highest attainable interim designated use and criterion may be and by when for how long they might may be attained needed

. A similar requirement is set out in the WQS regulation at §131.10(d) and (h)(2) that specify that a use is deemed attainable and cannot be removed if it can be achieved by the*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

45 of 63 imposition of

/implementing effluent limits required under sections 301(b ) and 306 of the
Act and cost

- effective and reasonable best management practices for nonpoint source
control. The EPA’s current position is that before removing a designated use states and
tribes must first evaluate the impact that point and nonpoint sourc e controls might have on water quality. When conducting such an evaluation, states and tribes should consider the impacts from implementing any 32 cost

- effective and reasonable BMPs for nonpoint source controls water body wide. In situations where it can be demonstrated that a use is precluded by non

- anthropogenic stressors (e.g., high levels of a naturally occurring metal
in a surface water body), the EPA does not expect states and tribes to evaluate nonpoint source controls, as controlling nonpoint sources would not lead to attainment.

The EPA’s proposed requirement for waterbody variances differs from those applicable to designated use use s because variances are time

- limited and targeted serving as a tool to facilitate progress toward the designated use and criterion. It is unnecessary to require states and tribes to demonstrate that the designated use and criteria are
unattainable even if cost effective and reasonable BMPs were implemented, as is required when revising a designated use, because variances do not “permanently” downgrade the designated use but establish a regulatory mechanism by which feasible progress will be made during the term of the variance. Instead, a requirement to identify and document

cost

- effective and reasonable BMPs for other sourc es will assist states and tribes in identifying the actions they may need to implement to meet their interim requirements as well as to make feasible progress towards attaining the designated use and criterion.

The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in this section

.

c. Part 3

— Implementing Variances

. The EPA is proposing to add paragraph (c) at 40 CFR 131.14 specifying that variances serve as the basis of a WQBEL included in a NPDES permit for the period the
variance is in effect

. Any activities required to implement the variance shall be included as conditions of the NPDES permit for the permittee (s) subject to the variance.
When variances are adopted and approved, they serve a s the basis of a WQBEL included in a NPDES permit during the variance period . However, any specific actions that will be necessary for the discharger to implement the variance and make such feasible progress are typically at the discretion of the permittin g authority. Therefore, in §131.14(c), the EPA is proposing regulatory language similar to §131.34(c) and §131.40 (c) linking the requirements of variances to the NPDES permitting process, specifically
40 CFR 122.44(d)(1)(viii)(A) that requires the permit ting authority to establish limitations that derive from and comply with the applicable WQS. The EPA believes the proposed regulatory requirement will ensure proper accountability when implementing
variances to accomplish the goals of the Act.

. The propose d provision reflects the provisions in the “Water Quality Guidance for the Great Lakes System” ( § ( 40 CFR Part 132, Appendix F, Procedure 2).

32 i.e., not just those that may already be required by state regulations.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

46 of 63 The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expre ssed in this section

. d. Part 4

— How to Renew a Variance

. The EPA is proposing to add paragraph (d) at 40 CFR 131.14 to specify that to obtain the EPA ’s approval of a variance renewal, the state or tribe must meet the requirements of §131.14 and provide app ropriate documentation of the steps taken to meet the requirements of the previous variance. Renewal of the variance may be disapproved if the applicant did not comply with the conditions of the original variance, or otherwise does not meet the requirement s of this section. For renewal of a waterbody variance, the state or tribe must also include documentation of whether and to what extent

cost

- effective and reasonable BMPs have been implemented to address the pollutant(s) subject to the variance and the wa ter quality progress achieved during the variance period.
Although the EPA is proposing to establish a maximum single variance term of no more than 10 years, it recognizes that there may be circumstances in which a renewal of a variance is both necessary and appropriate. The As the EPA’s 1998 ANPRM articulates
the EPA’s current position that

, variances are WQS and should be continued or extended only where the initial conditions for granting the variance still apply

. 33 If a variance term will expire and the applicant complied with the conditions of the original variance (e.g., feasible progress has been made ) , but the designated use and criterion remain
unattainable , then renewal of a variance may be an appropriate option for the state or tribe to consider.

The EPA is providing an additional requirement for waterbody variances because both point and nonpoint sources are contributing to the water quality challenges

. It is essential that during the term of the initial v ariance the state works with the contribu ting sources to make progress toward the designated use and criterion

. T he state or tribe must document whether and to what extent BMPs have been implemented and the water quality progress achieved during the variance period

. Today’s proposed regulation ex plicitly provides that the EPA may disapprove a renewal of the variance if the applic ant did not comply with the conditions of the original variance, or otherwise does not me et the requirements of §131.14. The EPA is specifically providing itself the flexi bility to determine whether to disapprove a variance
because it recognizes that circumstances out of the permittee or , state’s or tribe’s control may impact the ability to meet the specific conditions and requirements of the variance, even if all required actions to implement the variance were completed. The proposed regulatory language allows the EPA to consider these factors when determining whether to grant a WQS variance renewal. If the EPA disapproves the variance renewal, then the

state or tribe mus t implement its water quality program to meet the applicable designated use and associated criteria or conduct a UAA to justify a revision to the designated use
and associated criteria.

33 63 FR 36759*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

47 of 63 The EPA invites comment on its proposal and on any other options it sh ould
consider or on the interpretations expressed in this section

.

e. Part 5

—

Variances for the EPA

- Promulgated Designated Uses

. The EPA is proposing to delete detailed variance procedures promulgated by the EPA in 40 CFR 131.34(c) and 131.40(c) and replac e them with language specifying that the appropriate Regional Administrators may grant variances from the EPA

- promulgated regulations for Kansas

, and Puerto Rico consistent with today’s proposed requirements at §131.14.

The EPA promulgated variance proced ures that the Regional Administrator could use to grant variances from the specific WQS the EPA promulgated for Kansas and Puerto
Rico in §131.34 and 131.40

. T oday’s proposal reflects the most efficient and transparent approach t o ensure that variances gra nted by the Regional Administrator for the federally promulgated standards in Kansas and Puerto Rico are required to meet the same requirements as the rest of the United States once the EPA finalizes the nationally applicable revisions to 40 CFR part 131.

The EPA invites comment on its proposal and on any other options it should
consider or on the interpretations expressed in this section

. G. Provisions Authorizing the Use of Permit

- Based Compliance Schedules

. 1. The EPA Proposal

. The EPA is proposing to add a n ew regulatory provision at §131.15 to codify be
consistent with the decision of the EPA Administrator in In t he Matter of Star

- Kist Caribe, Inc. (1990 WL 324290 (EPA), 1990 EPA App. LEXIS 45, 3 EAD 172 (April 16, 1990))

. This provision would clarify that a permitting authority may only issue compliance schedules for WQBEL s in NPDES permits if the state or tribe has authorized issuance of such compliance schedules pursuant to state or tribal law in its water quality standards or implementing regulations. Any such compliance schedule authorizing provision is a WQS subject to the EPA ’s review and approval. The proposed provision would also clarify that individual compliance schedules issued pursuant to such authorizing pro visions are not themselves WQS but must be consistent with CWA section 502(17), the s tate’s or tribe’s EPA

- approved compliance schedule authorizing provision

, and the requirements of 40 CFR § §122.2 and 122.47

. 2. Rationale for Revision

. CWA section 502(17) defines “schedule of compliance” to mean “a schedule of remedial measures including an enforceable sequence of actions or operations leading to compliance with an effluent limitation, other limitation, prohibition, or standard.” The
EPA’s NPDES regulation at 40 CFR 1 22.2 define s a schedule of c ompliance as “a schedule of remedial measures included in a ‘permit,’ including an enforceable sequence of interim requirements...leading to compliance with the CWA and regulations.” S ection 301(b)(1)(C) of the Act specifie s that there shall be achieved “... n ot later than July 1, 1977, any more stringent limitation, including those necessary to meet WQS , treatment standards, or schedules of compliance, established pursuant to any State law or regulations (under authority preserved by section 1370 of this title ) or any other Federal*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

48 of 63 law or regulation, or required to implement any applicable water quality standard established pursuant to this chapter. ”

In In the Matter of Star

- Kist Caribe, Inc. , the EPA Administrator (in an appeal of an
EPA

- issued NPDES permit) i nterpreted CWA 301(b)(1)(C) to mean that ( 1) after July 1, 1977, permits must require immediate compliance with (i.e., may not contain compliance schedules for) effluent limitations based on WQS adopted before July 1, 1977, and ( 2) permit compliance schedu les are allowed for effluent limitations based on WQS adopted
after that date only if the s tate or tribe has clearly indicated in its WQS or implementing regulations that it intends to allow them (i.e., the s tate’s or tribe’s WQS or implementing regulation s must contain a provision authorizing the use of permit

- based compliance schedules). The latter requirement ensures that a permit including such a compliance
schedule still meets WQS pursuant to CWA section 301(b)(1)(C)

. The EPA’s current WQS regulation is silent regarding compliance schedules and compliance schedule authorizing provisions. As a result, despite Star

- Kist

, the EPA is
concerned that state/tribal permitting authorities may be including compliance schedules in permits, thus delaying complian ce with a WQS

- based WQBEL, even though the

state /tribe may not have authorized the use of such compliance schedules in its WQS or implementing regulations.

Consistent with the Star

- K ist decision, a s tate or tribe has the discretion to include a compliance schedule authorizing provision in its WQS or implementing regulations. Such a provision may also be codified in a state or tribe’s NPDES regulations. However, regardless of where it appears, a compliance schedule authorizing provision adopted pursuant to state or tribal law is considered a WQS subject to the EPA ’s approval under
CWA section 303(c)(3). Although a compliance schedule authorizing provision does not describe the desired condition or level of protection of the a water body in exactly the

same way as a designated use or water quality criteria, it significantly affect s expresses the state’s or tribe’s intent to allow a delay in meeting the way those designated uses and water quality criteria are implemented in permits desired condition . Compliance schedule authorizing provisions allow the permitting authority to provide a permittee additional time to comply with a WQBEL that derives from and complies with the applicable WQS beyond the date of permit issuance, which is the date upon which a permitte e is otherwise required to comply with its WQBEL. Thus, a compliance schedule authorizing provision allows the state to delay when the applicable WQS will be met. In addition, as articulated
in the Star

- Kist decision, states and tribes may only allow this delay if the applicable WQS that authorizes the compliance schedule was adopted, is new or revised, or newly interpreted after July 1, 1977.

When states and tribes authorize the use of compliance schedules in their WQS or implementing regulations, they en sure that WQBELs subject to appropriately issued compliance schedules are “fully consistent with, and therefore ‘meet,’ the requirements
of the State or tribal water quality standard

, as contemplated by [CWA] 301(b)(1)(C).”
Star

- Kist at 175. Once approved pursuant to CWA 303(c)(3), the compliance schedule authorizing provision itself becomes part of the applicable WQS; therefore, any delay in compliance with a WQBEL pursuant to that permit compliance schedule would be
consistent with state/tribal WQS . A c ompliance schedule , as defined by section 502(17)*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

49 of 63 of the Act, that is granted pursuant to a state’s or tribe’s approved compliance schedule authorizing provision is , on the other hand, a permitting tool and is not itself considered a WQS. The EPA has impl emented section 502(17) of the Act in the context of the NPDES permitting program at 40 CFR 122.2 and 122.47 . Any compliance schedule, itself, must be consistent with these provisions.

The EPA invites comments on the proposed addition of §131.15

. The EPA also invites comment on any other options it should consider or on the interpretations expressed in this section

.
H. Other Changes

. 1. The EPA Proposal

. In the course of developing today’s proposal, the EPA identified several spelling mistakes, grammatical err ors and/or inconsistencies , and incorrect citations in 40 CFR

p art 131, as well as the need for various conforming edits (e.g., provisions that need to be

re

- numbered or re

- lettered based on a regulatory addition or deletion outlined in today’s proposal)

. The EPA is proposing the following changes:

§131.2: Change “...necessary to protect the uses” to “... that protect the designated uses” (consistency with terminology in §131.11).
§131.3(h): Change “technology

- bases” to “technology

- based” (spelling mistake).
§13 1.3(j): Delete “the Trust Territory of the Pacific Islands.” 34 Insert the word “the” in front of “water quality standards program” (grammatical clarification).
§131.5( a) ( 1 ) : Change “...has adopted water uses” to “...has adopted designated water uses” (grammatic al clarification).
§131.5(a) (2): Insert “...based on sound scientific rationale” (consistency with language in §131.11). §131.10(j): Insert “and §131.10(g)” before the word “whenever” (consistency with proposed revisions to §131.10(g)).
§131.10(j)(2): Inse rt “, to remove a subcategory of such a use,” after the first instance of “...specified in section 101(a)(2) of the Act” (legal clarification that a UAA is also required when removing a subcategory of a use specified in section 101(a)(2) of the Act without a dopting another use in its place).
§131.11(a)(2): Delete “ Toxic p ollutants ” to be consistent with the format of §131.11(a)(1) and to prevent the erroneous interpretation that the regulation only requires states to adopt criteria for toxic pollutants

. §131.1 1(a)(2): Change
reference from “40 CFR part 35” to “40 CFR part 130” to reflect the correct
citation.

34 “The Trust Territory of the Pacific Islands” became the “Commonwealth of the Northern Mariana
Islands” in 1986 via Presidential Proclamation. See http ://www.presidency.ucsb.edu/ws/index.php?pid=36688#axzz1XrK7AXLN*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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50 of 63 §131.11(b): Italicize “Form of criteria” (consistency with formatting in §131.11(a )) and change “ States should” to “ States shall” (legal clarification tha t criteria must be narrative or numeric ). ))

. §131.12(a)(2): Insert “the protection and” into the phrase “propagation of fish, shellfish and wildlife” to be consistent with CWA 101(a)(2) and the rest of the WQS regulation at part 131

. Change “assure” to “en sure” (grammatical clarification).
§131.20(b): Change “hold a public hearing” to “hold public hearings” and add “or revising” after “reviewing” (consistency with CWA 303(c) and §131.20(a)). Insert “EPA’s” in front of “public participation regulation” (cla rification that 40 CFR part 25 is the EPA’s regulation). Delete the phrase “EPA’s water quality management regulation (40 CFR 130.3(b)(6) ) ” (n onexistent c itation )

. The EPA invites comments on the proposed amendments described above

. The EPA
also invites c omment on any other options it should consider or on the interpretations expressed in this section

.

IV. When Does This Action Take Effect?
Comments on this proposed rulemaking must be received on or before [INSERT
DATE 60 DAYS 90

DAYS AFTER PUBLICATION IN THE FE DERAL REGISTER]

. S hould this proposed rulemaking be finalized , the effective date will likely be 60 days after publication of the final rule i n the Federal Register

. For judicial review purposes,
the effective date will likely be 60 days after publi cation of the final rule in the Federal Register.

The EPA is proposing to require states and tribes to meet the requirements of the
final rule on the effective date of the final rule

. The EPA’s expectation is that, where a new or revised requirement necessitates a change to state or tribal WQS, such changes
will occur within the next triennial review that the state or tribe initiates after the EPA ’s publication of the final rule

. The EPA invites comments on the proposed effective dates

. The EPA also invites

commen t on any other options it should consider or on the interpretations expressed in
this section

.

V. Economic Impacts on State and Tribal WQS Programs

. The EPA evaluated the potential incremental administrative burdens and costs that may be associated with today ’s proposal. Incremental burden and costs are those above and beyond the burden and costs associated with implementation of current WQS regulations. Because today’s proposal will not establish any requirements directly applicable to regulated entities, th e focus of the EPA’s economic analysis is to estimate the potential administrative burden and costs to state, tribal, and territorial governments, and the EPA. The EPA’s economic analysis is documented in Economic Analysis for the Water Quality Standards R egulatory Clarifications (Proposed Rule) and can be found in the docket for today’s proposal.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

51 of 63 The EPA assessed the potential incremental burden and costs associated with today’s proposed regulation revisions by first identifying those elements of the pro posed revisions that may be associated with impose incremental burdens and costs. The EPA estimated the incremental number of labor hours potentially required by states and tribes to comply with those elements of the proposed regulations, and then estimate d the costs
associated with those additional labor hours. The EPA identified four areas where incremental burdens and costs may be anticipated: (1) one

- time burden and costs associated with state and tribal rulemaking activities because states and tribes may need to adopt new or revised provisions into their WQS, (2) annual costs associated with designating uses because identifying the highest attainable use when performing a UAA may require additional labor hours, (3) one

- time and annual costs associated with antidegradation implementation including developing or revising antidegradation implementation procedures and reviewing a greater number and more complex antidegradation requests, and (4) annual costs associated with additional development
and docume ntation of variance requests. In addition to the proposed requirements included in today’s proposal, the EPA is considering and requesting comment on whether the EPA should include a requirement that antidegradation implementation methods be formally ado pted as WQS and thus subject to the EPA’s review and approval or disapproval. Incremental burden and costs were estimated for all 50 states, the District of Columbia, 5 territories, and the 36 39 Indian tribes authorized to administer a WQS program with W QS approved by the EPA.

The Estimates of the incremental administrative burdens burden and costs to state and tribal governments potentially associated with today’s proposal without the requirement to adopt antidegradation implementation methods as WQS are summarized in the following table: Comment [SHPD4]: Updated for accuracy.. Changes were not made at the suggestion or recommendation of OIRA during EO 12866 Review.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

52 of 63 Summary of Incremental Administrative Burden and Costs to State and Tribal Governments
Associated with With Today’s Proposal Without the Requirement to Adopt Antidegradation Implementation Methods as WQS

Provision One

- t ime Annual Recurring

Burde

n (hours ) Cost (2010 (
201 3 $
million s) Annualized
Cost (2013$ millions/ye ar) 1 Burden (hours/ye ar) Cost ( 2010 201 3 $ millions/year)

Rulemaking
Activities 9, 200

-

46,000
500

- 47,500 $0.46

-

$2.28 $0. 38

- $1.89 03

- $0.15

-- -- Design ated Uses

-- -- -- 240

- 1,200 $0.01

- $0. 05 06
Antidegradation Antidegradation

2 32,400

– 64,800 $1.33

-

$2.66 86,000

-

129,000 $3.49

- $5.26 97,0
70

- 145,605 $4.61

- $7.04

Variances

-- -- -- 4,620

- 5,310 $0. 19 22

- $0. 21 26

National Total 41,600

- 110,80
0 9 ,500

- 47,500 $0.46

-

$2.28 $0.03

-

$0.15 101,930

-

152,115 $1.71

-

$4. 54 84

- $7.36 90,860

-

135,510 $3.69

-

$5.52

‘

-- ‘ = not applicable 1. Although the EPA expects these one

- time costs to occur once over a 3 year period, they are annualized here at 3% d iscount rate over 20 years for comparative purposes.
2. Includes annual costs associated with reviewing a greater number and more complex antidegradation requests

.

In addition to the potential burden and costs to state and tribal governments, today’s

pro posal may be associated with incremental burden and costs to the EPA. Estimates of
the incremental administrative burden and costs to the EPA associated with today’s proposal without the requirement to adopt antidegradation implementation methods as WQS a re summarized in the following table:*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

53 of 63 Summary of Potential Incremental Administrative Burden and Costs to the EPA
Associated with With Today’s Proposal Without the Requirement to Adopt

Antidegradation Implementation Methods as WQS
One

- time Annual Recurring

Costs to
States
and
Tribes ( 2010 20
1 3 $ million) Costs

to the Agenc

y 1 ( 2010 2
01 3 $
million ) Annualize
d Cost to
the Agency 2 (2013$
million per year) Burden Costs to

States and
Tribes ( 2010 201
3 $ million per year) Costs to

the Agency 1 ( 2010 201
3 $ million

per year ) Burden

Hours 2 FTEs

3 Hou

rs 3 FTE

s 4 Hour

s per
year 2

year 3 FTEs per

year 3 year 4

$ 1.71

- $4.54 0.4
6

- $2.28 $0. 34 0

9

- $0. 91 4
6 4,570

- 12,190 $0.
01

- $0.03 1,200

- 6,040 0.58

- 2. 2

- 5.86
9 $ 3.69

- $5.52 4.84

- $7.36 $0. 74 97

-

$1. 11 47 12,81

0

- 19,47
0 9,890

- 14 ,820
6.16

- 9.36 4.75

- 7.13

1. Assuming that the incremental costs to the EPA are equal to 20% of the costs to states
and tribes.
2. Total costs to the Agency divided by hourly wage rate ($74.56 per hour). Although the EPA expects these one

- time costs to occur once over a 3 year period, they are annualized here at 3% discount rate over 20 years for comparative purposes.

3. 3. Total costs to the Agency divided by hourly wage rate (including overhead and benefits) of $ 75.55 per hour.
4

. Burden hours to the Ag ency divided by hours worked by full

- time equivalent (FTE) employees per year (2,080 hours per year).

A summary of the combined estimated costs t o all potentially affect states, tribes,
and the EPA without the requirement to adopt antidegradation impleme ntation methods as WQS are summarized in the following table

.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

54 of 63 Summary of Potential Incremental Administrative Burdens and Costs Associated with With the Proposed Rule to States, Tribes, and the EPA Without the Requirement to Adopt

Antidegradation Implementa tion Methods as WQS

Entities One

- time Annual Recurring

Burden (hours) Cost (2010 (2
01 3 $
millions ) Annualize
d Cost 1 (2013$ million/ye ar) Burden (hours/y ear) Cost ( 2010 201 3 $millions/year)

States and
tribes 41,600

-

110,800 9,500

- 47,500 $0.46

-

$2.28 $0. 03

-

$0.15 101,930

- 152,115 $1.71

-

$4. 54 84

- $7.36 90,860

-

135,510 $3.69

- $5.52

Agency 4,570

-

12,190 1 ,200

- 6,040 $0. 34 09

- $0. 91 46 9,890

-

14,820 $0.
01

- $0.03 12,810

-

19,470 $0. 74 97

- $1. 11 47

Total 46,170

-

122,990 10,700

- 53,540 $0.55

- $2. 05

- $5.45 74 100,750

- 150,330 $0
.04

- $0.18 $4.42

- $6.63 11 4,740

- 171,585 $5.81

- $8.83

1. Although the EPA expects these one

- time costs to occur once over a 3 year period, they are annualized here at 3% discount rate over 20 years for comparative purposes.

To estimate the total annual cost of today’s proposal including without the requirement to adopt antidegradation implementation methods as WQS which include
both one

- time costs and recurring costs, the EPA annualized the one

- time costs over a period of 20 y ears. Using a 20

- year annualization period and a discount rate of three percent

, total annual costs for today’s proposal without the requirement to adopt antidegradation implementation methods as WQS are estimated to range from $ 4.56 5.84 million ($0.04 mill ion to $ 7.00 + $5.81 million ) to $ 9.01 millio n ($0.18 million + $8.83 million) per year. In addition to the proposed requirements included in today’s proposal, the EPA is considering and requesting comment on whether the EPA should include a requirement

t hat antidegradation implementation methods be formally adopted as WQS and thus subject to the EPA’s review and approval or disapproval. This additional requirement would require affected entities to develop or revis e antidegradation implementation methods, and adopt the implementation methods in WQS, result ing in one

- time (nonrecurring) burden and costs . Estimates of the incremental administrative burden and costs to state and tribal governments associated with today’s proposal including the requirement to adopt antidegradation implementation methods into WQS are summarized in the following table:*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

55 of 63 Summary of Incremental Administrative Burden and Costs to State and Tribal Governments Associated With Today’s Proposal With the Requirement to Adopt Antidegradat ion Implementation Methods as WQS

Provision One

- time Recurring

Burden (hours) Cost (201 3 $

millions) Annualized

Cost 1 (2013$ millions/year) Burden

(hours/year) Cost (201 3 $

millions/year)

Rulemaking Activities 9,500

- 47,500 $0.46

-

$2.28 $0.03

- $0.15

- - -- Designated Uses

- - - 240

- 1,200 $0.01

- $0.06

Antidegradation 33,600

- 67,200 $1.61

-

$3.23 $0.11

- $0.22 97,070

- 145,605 $4.61

- $7.04

Variances

- - - 4,620

- 5,310 $0.22

- $0.26

National Total 43,100

- 114,700 $2.07

-

$5.51 $0.14

- $0.37 101, 930

- 152,115 $4.84

- $7.36

‘

-- ‘ = not applicable 1. Although the EPA expects these one

- time costs to occur once over a 3 year period, they are annualized here at 3% discount rate over 20 years for comparative purposes.

Estimates of the incremental adm inistrative burden and costs to the EPA associated with today’s proposal including the requirement to adopt antidegradation implementation methods into WQS are summarized in the following table:

Summary of Potential Incremental Administrative Burden and Co sts to the EPA Associated With Today’s Proposal With the Requirement to Adopt Antidegradation

Implementation Methods as WQS
One

- time Recurring

Costs to
States and
Tribes (201 3 $ million) Costs to

the Agency 1 (201 3 $ million) Annualized

Cost to the Agency 2 (2013$ million per year) Burden Costs to States
and Tribes (201 3 $ million per year) Costs to the

Agency 1 (201 3 $ million per year) Burden

Hours 3 FTEs 4 Hours

per
year 3 FTEs

per
year 4

$2.07

- $5.51 $0.41

-

$1.10 $0.03

–

$0.07 5,480

-

14,570 2.63

- 7.01 $4.84

- $7.36 $0.97

- $1.47 12,810

- 19,470 6.16

- 9.36*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

56 of 63 1. Assuming that the incremental costs to the EPA are equal to 20% of the costs to states and
tribes.
2. Although the EPA expects these one

- time costs to occur once over a 3 year period, they are

a nnualized here at 3% discount rate over 20 years for comparative purposes.
3. Total costs to the Agency divided by hourly wage rate (including overhead and benefits) of $ 75.55 per hour.
4 . Burden hours to the Agency divided by hours worked by full

- time equ ivalent (FTE) employees per year (2,080 hours per year).

A summary of the combined estimated costs of today’s proposal t o all potentially affect states, tribes, and the EPA including the requirement to adopt antidegradation implementation methods into WQ S are summarized in the following table

. Summary of Potential Incremental Administrative Burdens and Costs Associated with the Proposed Rule to States, Tribes, and the EPA With the Requirement to Adopt Antidegradation Implementation Methods as WQS

Entitie s One

- time Recurring

Burden (hours) Cost (201 3 $

millions) Annualized

Cost 1 (2013$ millions/year) Burden

(hours/year) Cost (201 3

$millions/year)

States and tribes 43,100

-

114,700 $2.07

- $5.51 $0.14

- $0.37 101,930

- 152,115 $4.84

- $7.36

Agency 5,480

-

14,570 $0.41

- $1.10 $0.03

- $0.07 12,810

- 19,470 $0.97

- $1.47

Total 48,580

-

129,270 $2.48

- $6.61 $0.17

- $0.44 114,740

- 171,585 $5.81

- $8.83

1. Although the EPA expects these one

- time costs to occur once over a 3 year period, they are
annualized here at 3% discount rate over 20 years for comparative purposes.

To estimate the total annual cost of today’s proposal including the requirement to adopt antidegradation implementation methods as WQS which include both one

- time

costs and recurring costs, the EPA annualized the one

- time costs over a period of 20 years. Using a 20

- year annualization period and a discount rate of three percent

, total annual costs for today’s proposal with the requirement to adopt antidegradation implementation methods as WQS are estimated to range from $5.98 million ($0.17 million + $5.81 million) to $9.27 million ($0.44 million + $8.83 million) per year.

In addition to estimating potential burden and costs, the EPA also evaluated the potential benefits associated with today’ s proposal. States, tribes, stakeholders, and the public will benefit from today’s clarifications of the WQS regulations by ensuring better
utilization of available WQS tools that allow states and tribes the flexibility to implement their WQS in an effici ent manner while providing transparency and open public participation. Although associated with potential administrative burden and costs in some areas, today’s proposal has the potential to partially offset these costs by reducing regulatory uncertainty and consequently increasing overall program efficiency

. Furthermore, more efficient and effective implementation of state and tribal WQS has the*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

57 of 63 potential to provide a variety of economic benefits associated with cleaner water including the availability of clean, safe, and affordable drinking water, water of adequate quality for agricultural and industrial use, and water quality that supports the commercial fishing industry and higher property values. Nonmarket benefits of today’s proposal include the prote ction and improvement of public health and greater recreational opportunities. The EPA acknowledges that achievement of any benefits associated with cleaner water would involve additional control measures, and thus costs to regulated
entities and non

- poin t sources , that have not been included in the economic analyses for this proposed rule. The EPA has not attempted to quantify either the costs of such control measures that might ultimately be required as a result of this rule, or the benefits they would provide. Complete details on how the EPA evaluated burden, costs, and
benefits are documented in Economic Analysis for the Water Quality Standards Regulatory Clarifications (Proposed Rule) included in the docket for today’s proposal.

The EPA invites comme nts on its economic analysis. Specifically, the EPA invites comments on the accuracy of the burden and costs estimates presented in this proposed rulemaking, and any actual state data that may help to refine these estimates proposal, and any actual state o r tribal data that may help to refine these estimates. This propos al does not establish any requirements directly applicable to regulated point sources or nonpoint
sources of pollution , although the EPA recognizes that these sources could potentially
incur costs as a result of changes to WQS adopted by states and tribes as a result of this rule (states and tribes could also adopt new or revised WQS independent of this proposed rule). However, unlike some other EPA WQS rules for which an economic analysis was prepared, this proposal does not lend itself to identification of readily predictable outcomes regarding changes to state water quality standards that might result. Likewise,
the EPA could not predict requirements that could ultimately be imposed on N PDES permittees and nonpoint sources. Thus, the EPA has not analyzed potential costs or cost savings associated with any consequences of revised state or tribal WQS. Nonetheless,
the EPA is interested in the potential implications of today’s proposal for regulated
entities and non

- point sources and on whether and how it should incorporate s uch costs in its economic analy sis of the rule

.

VI. Statutory and Executive Order Reviews

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

. Under Executive Order (E

. O

. ) 12866 (58 FR 51735), this action is a “ significant regulatory action ” that raises novel legal or policy issues, arising out of a legal mandate

. . ” Accordingly, the EPA submitted this action to the Office of Management and Budget (OMB) for review under E

. O

. s 12866 and 13563 (76 FR 3821) and any changes made in response to OMB recommendations have been documented in the docket for this action.

In addition, the EPA prepared an analysis of the potential costs and benefits
associated with this action

. This analysis is contained in “ Economic Analysis for the Proposed Revisions to Water Quality Standards Regulatory Revisions

. ” A copy of the*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

58 of 63 analysis is available in the docket for this action a nd the analysis is briefly summarized in Section V of the preamble.

B. Paperwork Reduction Act

. The information collection requirements in this proposed rule have been submitted for approval to the Office of Management and Budget (OMB) under the Paperwork
Red uction Act, 44 U.S.C. 3501 et seq. The Information Collection Request (ICR) document prepared by the EPA has been assigned EPA ICR number 2449.01

. The EPA is proposing the WQS Regulatory Clarifications Rule to improve the regulation’s effectiveness in hel ping restore and maintain the chemical, physical, and biological integrity of the nation’s waters. The core of the current regulation has been in place since 1983; since then, a number of issues have been raised by stakeholders or identified by the EPA in the implementation process that will benefit from clarification and greater specificity. The proposed rule addresses the following key program areas: (1) A dministrator’s determinations that new or revised WQS are necessary, (2) d esignated uses, (3) trienni al reviews, (4) antidegradation, (5) variances to WQS, and ( 6 5 ) compliance schedule authorizing provisions. In addition to the proposed requirements included in today’s proposal, the EPA is considering and requesting comment on whether the EPA should requi re that antidegradation implementation methods be adopted as WQS and thus subject to the EPA’s review and approval or disapproval

. This mandatory information collection will ensure the EPA has the needed information to review standards and make approvals or disapprovals in accordance with provisions in the proposed Water Quality Standards Regulatory Clarifications Rule.

Under the Clean Water Act (CWA), the EPA is responsible for reviewing and approving or disapproving new and revised WQS submitted by stat es and tribes. The EPA will use the information required by this proposed rule to carry out its responsibility
under the CWA. In reviewing state and tribal standards submissions, the EPA considers whether submissions are consistent with the WQS regulation at part 131. The WQS Regulatory Clarifications Rule will add new requirements to part 131. If the information collection activities in the WQS Regulatory Clarifications Rule are not carried out, specific improvements in the implementation of the WQS progra m will not take place. In some cases, implementation and control steps such as total maximum daily loads and National Pollutant Discharge Elimination System permits may not be as protective as necessary under the CWA.

Burden is defined at 5 CFR 1320.3(b). The EPA expects that t he proposed rule will lead to incremental burden hours and labor costs in the following areas: rulemaking
activities , designated uses, antidegradation, and variances to WQS. The EPA estimates the cost of labor from data on state gove rnment hourly wage rates (data are not available for tribes). The labor categories chosen as applicable to WQS regulatory revision efforts are Environmental Scientist, Department Manager, Environmental Engineer, and
Economist. Given the 2009 20 12 labor rate s for these categories, inflated to October
2010 March 2013 dollars using the Bureau of Labor Statistics (BLS) Employment Cost Index for professional and related state and local government workers ( 113.3/111.1 =
1.02 116.0/115.0 = 1.01 ), and accounting for b enefits using the BLS Employer Cost for*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

59 of 63 Employee Compensation for state and local professional government workers ( 31 32 .7 % of total compensation is attributable to benefits), the EPA calculated an a verage hourly wage rate of $ 41 48

. The EPA estimates the in cremental number of labor hours using historical information and data, and the historical knowledge and best professional judgment of EPA personnel with experience administering the WQS program. A total of 92 95 governmental entities are potentially affecte d by the proposed rule : 50 states, the District of Columbia, 6 territories, and 36 39 tribes that have authority to administer WQS

programs

. Rulemaking activities and proposed antidegradation provisions that require
affected entities to develop or revis e a ntidegradation implementation methods result in

one

- time (nonrecurring) burden and costs . Note that these one

- time activities will occur
over an initial three

- year period

. The proposed rule will also require affected entities to undertake the following act ivities each year: conduct use attainability analyses to determine the highest attainable use, r eview a lternative a nalyses in a ntidegradation

r equests

, review additional antidegradation requests for high quality waters, comply with

new submission requireme nts for variances

, and review additional variance renewal applications. Given the EPA’s estimates of t he number and frequency of labor hours associated with each of the proposed provisions, the total one

- time incremental burden (during each of the first th ree years) associated with the proposed rule without requiring adoption of antidegradation implementation methods as WQS ranges from 13,870 3,170
hours to 36,930 15,830 hours, while the annual incremental burden ranges from 90,860 101,930 hours to 135,510 152, 115 hours. Given an hourly wage rate of $ 41 48

, these labor hours lead to total one

- time costs (incurred during each of the first three years) of approximately $0. 57 15 million to $ 1.51 0.76 million and annual costs of $ 3.69 4.84 million to $ 5.52 7.36 million. The se incremental burden and costs are
associated with a total of 31 32 one

- time responses per year during the initial three

- year period for rulemaking activities. In addition, the number of annual responses is 1,405

responses. In addition to the proposed requirements included in today’s proposal, the EPA is considering and requesting comment on whether the EPA should include a requirement that antidegradation implementation methods be formally adopted as WQS and thus subject to the EPA’s review and approv al or disapproval. This additional requirement would require affected entities to develop or revis e antidegradation implementation methods, and adopt antidegradation implementation methods as WQS result ing in one

time (nonrecurring) burden and costs . Inc luding this additional requirement, the total

one

- time incremental burden (during each of the first three years) associated with the proposed rule ranges from 14,370 hours to 38,230 hours, while the annual incremental
burden remains the same ranging from 1 01,930 hours to 152,115 hours. Given an hourly wage rate of $48, these labor hours lead to total one

- time costs (incurred during each of the first three years) of approximately $0.16 to $0.82 million and annual costs of $4.84 to $7.36 million. The se increm ental burden and costs are associated with a total of 32 one

time responses per year during the initial three

- year period for rulemaking activities. In addition, the number of annual responses is 1, 306 405 responses. Comment [SHPD5]: Updated for accuracy. Changes were not made at the su ggestion or recommendation of OIRA during EO 12866 Review.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

60 of 63 An agency may not conduct or sponsor, an d 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 CF R are listed in 40 CFR part 9.
To comment on the Agency's need for this inf ormation, the accuracy of the provided burden estimates, and any suggested methods for minimizing respondent burden, the EPA has established a public docket for this rule, which includes this ICR, under Docket
ID number EPA

- HQ

- OW

- 2010

- 0606. Submit any comm ents related to the ICR to the EPA and OMB. See ADDRESSES section at the beginning of this notice for where to
submit comments to the EPA. Send comments to OMB at the Office of Information and Regulatory Affairs, Office of Management and Budget, 725 17th S treet, NW, Washington, DC 20503, Attention: Desk Office for EPA. Since OMB is required to make a decision concerning the ICR between 30 and 60 days after [Insert date of publication in the Federal Register.] , a comment to OMB is best assured of having its full effect if OMB receives it by [Insert date 30 days after publication in the Federal Register.]

. The final rule will respond to any OMB or public comments on the information collection requirements contained in this proposal.

C. Regulatory Flexibility Act

. The Regulatory Flexibility Act (RFA) generally requires an agency to prepare a regulatory flexibility analysis of any rule subject to notice and comment rulemaking requirements under the Administrative Procedure Act or any other statute unless the

agenc y certifies that the rule will not have a significant economic impact on a substantial
number of small entities

. Small entities include small businesses, small organizations, and small governmental jurisdictions.
For purposes of assessing the impacts of to day ’ s rule on small entities, small entity is defined as (1) a small business as defined by the Small Business Administration’s (SBA) regulations at 13 CFR 121.201; (2) a small governmental jurisdiction that is a government of a city, county, town, school district or special district with a population of less than 50,000; and (3) a small organization that is any not

- for

- profit enterprise which is independently owned and operated and is not dominant in its field.
After considering the economic impacts of tod ay’s proposed rule on small entities, I certify that this action will not have a significant economic impact on a substantial
number of small entities

. This proposed rule will not impose any requirements on small
entities

. State and tribal governments responsible for administering or overseeing water quality programs may be directly affected by this rulemaking, as states and tribes may need to consider and implement new provisions, or revise existing provisions, in their WQS. Small entities, such as sm all businesses or small governmental jurisdictions, are not directly regulated by this rule. The EPA continue s to be interested in the potential impacts of the proposed rule on small entities and welcome comments on issues related to such impacts.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

61 of 63 D. Unfunde d Mandates Reform Act

. This rule does not contain a Federal mandate that may result in expenditures of $100 million or more for s tate, local, and tribal governments, in the aggregate, or the private sector in any one year. The EPA estimates total annual co sts to states and tribes to range from $ 3

, 690 ,000 to $ 5

, 520 ,000

. Thus , this rule is not subject to the requirements of
sections 202 or 205 of the Unfunded Mandates Reform Act of 1995 ( UMRA )

. This rule is also not subject to the requirements of section 203 of UMRA because it contains no regulatory requirements that might significantly or uniquely affect small governments.

E. Executive Order 13132 (Federalism)

. Under section 6(b) of E

. O

. 13132, the EPA may not issue an action that has federalism implications, th at imposes substantial direct compliance costs, and that is not required by statute, unless the Federal government provides the funds necessary to pay the direct compliance costs incurred by s tate and local governments, or the EPA consults
with s tate and l ocal officials early in the process of developing the proposed action

. In addition, under section 6(c) of E

. O

. 13132, the EPA may not issue an action that has federalism implications and that preempts s tate law, unless the Agency consults with

s tate and lo cal officials early in the process of developing the proposed action.

The EPA has concluded that the action may does not have federalism implications

. The EPA is proposing changes to provide clarity and transparency in the WQS regulation that may require s t ate and local officials to reevaluate or revise their standards

. However, it will not impose substantial direct compliance costs on s tate or local governments, nor will it preempt s tate law. Thus, the requirements of sections 6(b) and 6(c) of the E

. O

. do

n ot apply to this action.

Consistent with the EPA’s policy, the EPA nonetheless consulted with s tate and local officials early in the process of developing the proposed action to allow them to provide meaningful and timely input into its development

. In Aug ust and September 2010, the
EPA consulted with representatives from s tates and intergovernmental associations to
hear their views on the proposed regulatory changes

. Participants expressed concern that the proposed changes may impose a resource burden on s tate and local governments, as well as infring e on s tates’ flexibility in the areas of antidegr a dation and designated uses

. The EPA’s view is that such changes would generally codify the EPA ’s current practice and provide clarity of expectations to state a nd local regulators

. Participants urged the
EPA to ensure that states with satisfactory regulations in these areas are not unduly burdened by the proposed changes.
Keeping with the spirit of E

. O

. 13132, and consistent with the EPA’s policy to promote commu nications between the EPA and s tate and local governments, the EPA specifically solicits comment on this proposed action from s tate and local officials. In particular, the EPA requests comment on any provision in this proposed rule that state
officials bel ieve would impose an undue burden on state water quality standards

programs.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

- AF 16 NPRM FRN_Preamble Text.

62 of 63 F. Executive Order 13175

. Subject to the E

. O

. 13175 (65 FR 67249)

, the EPA may not issue a regulation that has tribal implications, that imposes substantial direct compliance costs, and that is not required by statute, unless the f ederal government provides the funds necessary to pay the direct compliance costs incurred by tribal governments, or the EPA consults with tribal officials early in the process of developing the proposed reg ulation and develops a tribal summary impact statement.

The EPA has concluded that this action may have tribal implications

. However, it will neither impose substantial direct compliance costs on tribal governments, nor preempt t ribal law

. To date, 4 6 4 8 In dian tribes have been approved for treatment in the

same a manner as similar to a state (TAS) for CWA sections 303 and 401

. Of the 4 6 4 8 tribes, 36 3 9 have federally approved WQS in their respective jurisdictions. All of these authorized tribes are subject t o this proposed rule

. However, this rule m ight impact
all other tribes as well because federal, state or authorized tribal standards may apply to

waters adjacent to the tribal waters

. The EPA consulted with tribal officials early in the process of developin g this regulation to allow them to provide meaningful and timely input into its development

. In August 2010, the EPA held a tribes

- only consultation
session to hear their views and answer questions of all interested tribes on the targeted

areas the EPA is considering for regulatory revision

. Tribes expressed the need for additional guidance and assistance in implementing the proposed rulemaking, specifically for development of antidegr a dation implementation methods and determination of the highest attainabl e use

. The EPA has considered the burden to states and tribes in developing the proposed option and

, when possible

, has chosen the option providing sufficient direction while allowing state or tribal resources to be spent addressing other aspects of their WQS programs. The EPA also intends to release updated guidance in a new edition of the WQS Handbook

. The EPA specifically solicits additional comment on this proposed action from tribal officials.

G. Executive Order 13045: Protection of Children from Environm ental Health Risks and Safety Risks

. The EPA interprets E

. O

. 13045 (62 FR 19885) as applying only to those regulatory actions that concern health or safety risks, such that the analysis required under
section
5

- 501 of the E

. O

. has the potential to influe nce the regulation

. This action is not subject to E

. O

. 13045 (62 FR 19885) because it is not economically significant as defined in E.O. 12866, and because the Agency does not establish an believe the
environmental standard intended to mitigate health or sa fety risks

. addressed by this action present a disproportionate risk to children.

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

. This action is not a “significant energy action” as defi ned in E

. O

. 13211 (66 FR 28355), because it is not likely to have a significant adverse effect on the supply, distribution, or use of energy. Comment [SHPD6]: U pdated for accuracy

. Changes were not made at the suggestion or recommendation of OIRA during EO 12866 Review.*** Documentation of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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63 of 63 I. National Technology Transfer and Advancement Act

. Section 12(d) of the National Technology Transfer and Advancem ent Act of 1995 (NTTAA), Pub

. L

. 104

– 113, 12(d) (15 U.S.C. 272 note) directs the EPA to use voluntary consensus standards in its regulatory activities unless to do so would be inconsistent with applicable law or otherwise impractical. Voluntary consensus s tandards are technical standards (e.g., materials specifications, test methods, sampling procedures, and business practices) that are developed or adopted by voluntary consensus standards bodies

. NTTAA directs the EPA to provide Congress, through OMB, expl anations when the Agency decides not to use available and applicable voluntary consensus standards.
This proposed rulemaking does not involve technical standards. Therefore, the EPA is not considering the use of any voluntary consensus standards.

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

- Income Populations

.
E

. O

. 12898 (59 FR 7629) establishes federal executive policy on environmental justice

. Its main provision directs federal agencies, to the g reatest extent practicable and permitted by law, to make environmental justice part of their mission by identifying and addressing, as appropriate, disproportionately high and adverse human health or environmental effects of their programs, policies, and a ctivities on minority populations
and low

- income populations in the United States.

The EPA has determined that this proposed rule will not have disproportionately high and adverse human health or environmental effects on minority or low

- income populations because it does not adversely affect the level of protection provided to human
health or the environment

. This proposed rulemaking does not directly establish water quality standards for a state or tribe

. In addition, this proposed rulemaking is national i n scope, and therefore is not s pecific to a particular geographic area (s).

List of Subjects in 40 CFR part 131

. Environmental protection, water quality standards, regulatory revision , designated uses, antidegradation, variances, triennial reviews, water qu ality criteria, compliance schedule authorizing provisions.

________________________ Dated: [Insert Date]

_____________________________ Lisa P. Jackson, Gina McCarthy

, Administrator

. Comment [SHPD7]: EPA Administrator c hange

. Edit was not made at the suggestion or
recommendation of OIRA during EO 12866 Review.*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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1 of 9 For the reasons stated in the preamble, the EPA proposes to amend 40 CFR part 131 as
follows: [The text below shows only the provisions affected by the revisions proposed in this rule and how they would read after publication of the final rule. It does not represent the entirety of the Part 131 regulations nor does it indicate that all of the language below
is new. ]

PART 131

— WATER QUALITY STANDARDS

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

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

Sub part A

- [Amended]

§131.2

- [Amended]

2. Amend § 131.2 by revising the first sentence to read as follows:

§ 131.2 P urpose. A water quality standard defines the water quality goals of a water body, or portion thereof, by designating the use or uses to be made o f the water and by setting criteria that protect the designated uses.

§131.3

- [Amended]

3. Amend §131.3 by revising paragraphs (h) and (j), and adding paragraph (m), to
read as follows:

§131.3 Definitions.
* * * * * (h) Water quality limited segment means a ny segment where it is known that water quality does not meet applicable water quality standards, and/or is not expected to meet applicable water quality standards, even after the application of the technology

- based effluent limitations required by section s 301(b) and 306 of the Act.
* * * * * (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 determin es to be eligible for purposes of the water quality standards program.
* * * * * (m) Highest attainable use and criteria is the aquatic life, wildlife, and/or recreation

use and the criteria that protect such a use that are found to be is both closest to th e uses specified in section 101(a)(2) of the Act and attainable, as determined using best Comment [SHPD1]: All changes shown below were made at the suggestion or recommendation of OIRA during EO 12866 Review

.*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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.

2 of 9 available data and information through an appropriate a use attainability analysis defined in §131.3(g).

§131.5

- [Amended]

4. Amend §131.5 as follows:

a. Revise para graphs (a)(1) and (a)(2):

§131.5 EPA Authority. (a) * * * (1) Whether the State has adopted designated water uses which are consistent with the requirements of the Clean Water Act; (2) Whether the State has adopted criteria that protect the designated wat er uses based on sound scientific rationale;
* * * * *

b. Add paragraph (a)(3) and re

- designate paragraphs (a)(3) through (a)(5) as (a)(4) through (a)(6):
* * * * * (3) Whether the State has adopted an antidegradation policy consistent with 131.12 (a)

,
an d if the State has chosen to adopt implementation methods , whether those implementation methods are consistent with § 131.12 ; (4) Whether the State has followed its legal procedures for revising or adopting standards;

(5) Whether the State standards which d o not include the uses specified in section 101(a)(2) of the Act are based upon appropriate technical and scientific data and analyses, and (6) Whether the State submission meets the requirements included in §131.6 of this part and, for Great Lakes States or Great Lakes Tribes (as defined in 40 CFR 132.2) to conform to section 118 of the Act, the requirements of 40 CFR part 132. (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 (a)(6) 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 (a)(6) of this section. EPA may also promulgate a new or revised standard when necessary to meet the requirements of the Act.

* * * * *
5. Amend § 131.6 by revising paragraph (d) to read a s follows:

§131.6 Minimum requirements for water quality standards submission.*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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3 of 9 * * * * * (d) An antidegradation policy and implementation methods consistent with §131.12.

* * * * *

Subpart B

- [Amended]

§131.10

- [Amended]

6. 5. Amend §131.10 by revising paragraphs (g ) )

, (j)

, and ( j) and removing paragraph ( k) as follows:

§131.10 Designation of uses.
* * * * * (g) Pursuant to §131.10(j), States may either (1) designate or remove a designated use that is specified in section 101(a)(2) of the Act or or a sub

- category of such a use , that is as long as the action does not remove protection for an existing use, as defined in §131.3, or (2) adopt sub

- categories of a use specified in section 101(a)(2) of the Act that require less stringent criteria, if the and the State can demonstrate that attaining the designated
use is not feasible through a use attainability analysis as described because : of one of the
six factors in §131.3(g). this paragraph. If the state revises its a State adopts new or
revised water quality standards based on such a demonstration use attainability analysis

, the state State shall also adopt the highest attainable use and the criteria to protect that use. To meet this requirement , States may , at their discretion, utilize their current use categories or subcategories, develop new use attainability analysis pursuant to §131.10(j) can demonstrate that attaining the designated categories or subcategories, or adopt another

use is not feasible becau se: which may include a location

- specific use.
* * * * *

* * * * * (j) A State must conduct a use attainability analysis as described in §131.3(g), and §131.10(g), whenever:
* * * * * (1) The State designates or has designated uses for a water body for t he first time that do not include the uses specified in section 101(a)(2) of the Act, or

(2) The State wishes to remove a designated use that is specified in section 101(a)(2) of the Act, to remove a subcategory sub

- category of such a use, or to adopt

su bcategories designate a sub

- categor y o f uses specified in section 101(a)(2) of the
Act such a use which require require s criteria less stringent criteria than previously applicable

.

* * * * * (k) [deleted]*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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4 of 9 (k) A State is not required to conduct a use attaina bility analysis wheneve r: (1) The State designates or has designated uses for a water body for the first time that include the uses specified in section 101(a)(2) of the Act, or (2) The State wishes to remove a designated use that is not specified in sect ion 101(a)(2) of the Act, or designate a sub

- category of a use specified in section 101(a)(2) of the Act which requires criteria at least as stringent as previously applicable.

§131.11

- [Amended]

7. 6. Amend §131.11 by revising paragraphs (a)(2) and (b) to rea d as follows:

(a) * * *
* * * * * (2) Toxic Pollutants

. States must review water quality data and information on discharges to identify specific water bodies where toxic pollutants may be adversely affecting water quality or the attainment of the designat ed water use or where the levels of toxic pollutants are at a level to warrant concern and must adopt criteria for such toxic pollutants applicable to the water body sufficient to protect the designated use. Where a State adopts narrative criteria for toxi c pollutants to protect designated uses, the State must provide information identifying the method by which the State intends to regulate point source discharges of toxic pollutants on water quality limited segments based on
such narrative criteria. Such i nformation may be included as part of the standards or may be included in documents generated by the State in response to the Water Quality Planning and Management Regulations (40 CFR part 130). (b) Form of criteria: In establishing criteria, States shall s hould :

* * * * * §131.12

- [Amended]

8. 7. Amend §131.12 by revising the section heading and paragraphs (a) and (a)(2) and adding paragraph (b) as follows:

§ 131.12 Antidegradation Policy and Implementation Methods

. (a) The State shall develop and adopt a stat ewide antidegradation policy . The antidegradation policy shall, at a minimum, be consistent with the following: (1) * * * (2) Where the quality of the waters exceed levels necessary to support the protection and propagation of fish, shellfish, and wildlife and recreation in and on the water, that quality shall be maintained and protected unless the State finds, after full satisfaction of the intergovernmental coordination and public participation provisions of the State’s continuing planning process, that a llowing lower water quality is necessary to accommodate important economic or social development in the area in which the waters are located. In allowing such degradation or lower water quality, the State shall ensure water quality adequate to protect exis ting uses fully. Further, the state shall ensure that*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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.

5 of 9 there shall be achieved the highest statutory and regulatory requirements for all new and existing point sources and all cost

- effective and reasonable best management practices for nonpoint source contr ol.

* * * * * (b) The State shall develop and adopt make available to the public s tatewide methods for implementing the antidegradation policy adopted pursuant to paragraph (a) of this section. A State’s antidegradation implementation methods shall be d esigned to achieve antidegradation protection consistent with paragraph (a) of this section. Such
methods must ensure that: (1) High quality waters are identified on either a parameter

- by

- parameter basis or on a water body

- by

- water body basis . A water bo dy

- by

- water body approach at the State’s discretion, but must not exclude any water body from high quality water protection based solely on the impairment of a single parameter or group of parameters if any because not all of the uses specified in CWA secti on 101(a)(2) s are attained; and (2) The State will only make a finding that lowering high water quality is necessary, pursuant to paragraph (a)(2) of this section, after conducting an alternatives analysis that evaluates a range of non

- degrading and minima lly degrading practicable alternatives that have the potential to prevent or minimize the degradation associated with the proposed activity. Any decision If the State can identify any practicable alternative s, the State must
choose one of those alternative s to authorize implement when authorizing a lowering of high water quality

.

§131.14

- [Added]

9. 8. Add §131.14 to subpart B to read as follows:

§131.14 Water Quality Standards Variances. States may, at their discretion, grant variances subject to the provisi ons of this section and public participation requirements at §131.20(b). A water quality standards variance (WQS variance) is a time

- limited designated use and criterion for a specified pollutant(s), permittee(s), and/or water body or waterbody segment(s) that reflect the highest attainable condition during the specified time period. WQS variances are water quality standards subject to EPA review and approval or disapproval and must be consistent with this section. Any such WQS variances adopted after [ins ert effective date of the final rule] must be consistent with this regulatory section. (a) Applicability: (1) All applicable WQS not specifically addressed by the WQS variance remain applicable. (2) (i) Where a state adopts a WQS variance, the State regulations must
continue to reflect the underlying designated use and criterion unless the state adopts and EPA approves a revision to the underlying designated use and criterion consistent with §131.10 or §131.11.*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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6 of 9 (ii) The interim requirements specified in the WQS var iance are in effect during the term of the WQS variance and apply for CWA section 402 permitting purposes and in issuing certifications under section 401 of the Act for the permittee(s), pollutant(s), and/or water body or waterbody segment(s) covered by th e WQS variance. For these limited purposes, the interim requirements will be the standards applicable for purposes of the CWA under 40 CFR 131.21(c)

- (e).

(3) A WQS variance shall not be granted if the designated use and criterion addressed by the proposed WQS variance can be achieved by implementing technology

- based effluent limits required under sections 301(b) and 306 of the Act. (b) Submission Requirements: (1) A WQS variance must specify the following: (i) Identifying information: A WQS variance must identify the pollu tant(s), permittee(s), and/or the water body or waterbody segment(s) to which the WQS variance applies. (ii) WQS that apply during a variance for CWA section 402 permitting purposes and in issuing certifications under section 401 of the Act: A WQS variance must specify (1) the highest attainable interim use and interim numeric criterion or (2) an interim
numeric water quality

- based effluent condition that reflects the highest attainable condition for a specific permittee(s) during the
term of the variance. Neith er (1) nor (2) shall result in any lowering of the currently attained water quality unless a time

limited lowering of water quality is necessary during the term of a variance for restoration activities, consistent with paragraph (b)(2)(ii) of this section. (iii) Date the WQS variance will expire: States must include an expiration date for all WQS variances, consistent with paragraph (b)(2) of this section. WQS variances must be as short as possible but expire no later than 10 years after state adoption. (2) The sta te The S tate must submit a demonstration justifying the need for a WQS variance. For a WQS variance to a use specified in section 101(a)(2)
of the Act or a sub

- category of such a use, the State must submit a
demonstration that attaining the designated use and criterion is not feasible during the term of the WQS variance because: (i) One of the factors listed in §131.10(g ), ) applies

, or (ii) Actions necessary to facilitate restoration through dam removal or other significant wetland or stream reconfiguration activit ies preclude attainment of the designated use and criterion while the actions are being implemented. (3) For a waterbody variance, the state must identify and document any cost

effective and reasonable best management practices for nonpoint source
controls rel ated to the pollutant(s) and location(s) specified in the WQS variance that could be implemented to make progress towards attaining the*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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7 of 9 designated use and criterion. A State must provide public notice and comment for any such documentation. (c) Implementing variances in NPDES permits: Consistent with paragraph (a)(2)(ii) of this section, a WQS variance serves as the basis of a water quality

- based effluent limit included in a NPDES permit for the period the variance is in effect. Any activities limitations requ ired to implement the WQS variance shall be included as conditions of the NPDES permit for the permittee(s) subject to the WQS variance. (d) WQS variance renewals: EPA may approve a WQS variance renewal if the State meets the requirements of this section and provides documentation of the actions taken to meet the requirements of the previous WQS variance. For a waterbody WQS variance renewal, the state must also provide documentation of whether and
to what extent the BMPs have been implemented to address the p ollutant(s) subject to the WQS variance and the water quality progress achieved during the WQS variance period. Renewal of a WQS variance may be disapproved if the applicant did not comply with the conditions of the original WQS variance, or
otherwise does not meet the requirements of this section.

§131.15

- [Added]

10. 9. Add §131.15 to subpart B to read as follows:

§131.1 5 Compliance Schedule Authorizing Provisions. A State may, at its discretion and consistent with state law, authorize schedules of complianc e for water quality

- based effluent limits (WQBELs) in NPDES permits by including a compliance schedule authorizing provision in its water quality standards or implementing regulations. Any such provision is a water quality standard subject to EPA
review a nd approval and must be consistent with sections 502(17) and 301(b)(1)(C) of the Act. Individual compliance schedules issued pursuant to such authorizing provisions are not themselves water quality standards. Individual compliance schedules must be
consi stent with CWA section 502(17), the state’s EPA

- approved compliance schedule authorizing provision, and the requirements of §122.2 and §122.47.

Subpart C

- [Amended]

§131.20

- [Amended]

11. 10. Amend §131.20 by revising paragraphs (a) and (b) to read as follows:

§ 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 and, as appropriate, mod ifying and adopting standards; in particular, any water body segment with water quality standards that do not include the uses specified in section 101(a)(2) of
the Act shall be re

- examined every 3 years to determine if any new information has*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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8 of 9 become avail able. 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. Similarly, where EPA has published a new or updated CWA section 304(a) criteria
recommendation , a state a S tate shall re

- examine its water quality criteria to determine if any criteria should be revised in light of the any new or updated CWA section 304(a)
recommendation criteria recommendation s to assure that the designated use continues use s continue to be protected. Procedures States establish for identifying and reviewing water bodies for review should be incorporated into their Continuing Planning Process. (b) Public Participation. The State shall hold public hearings for the purpose of
reviewin g or revising water quality standards, in accordance with provisions of State law and EPA’s public participation regulation (40 CFR part 25). The proposed water quality standards revision and supporting analyses shall be made available to the public prior to the hearing.

* * * * * §131.22

- [Amended]

12. 11. Amend §131.22 by revising paragraph (b) to read as follows:

§131.22 EPA promulgation of water quality standards.

* * * * * (b) T he Administrator may also propose and promulgate a regulation, applicable to

o ne or more States, setting forth a new or revised standard upon determining such a standard is necessary to meet the requirements of the Act. To constitute an
Administrator Administrator ’s determination, such determination must (1) be signed by
the Administ

rator or his or her duly authorized delegate, and (2) contain a statement that the document constitutes an Administrator’s determination under section 303(c)(4)(B) of
the Act.

* * * * * Subpart D

- [Amended]

§131.34

- [Amended]

13. 12. Amend §131.34 by revising par agraph (c) and removing paragraphs (c)(1) through (c)(5) to read as follows:

§131.34 Kansas.

* * * * * (c) Water quality standard variances. The Regional Administrator, EPA Region 7, is authorized to grant variances from the water quality standards in pa ragraphs (a) and (b) of this section where the requirements of §131.14 are met.*** Documentatio n of Changes Made During OMB Review Under EO 12866 *** OW WQS RIN 2040

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9 of 9 §131.40

- [Amended]

14. 13. Amend §131.40 by revising paragraph (c) and removing paragraphs (c)(1) through (c)(5) to read as follows:

§131.40 Puerto Rico.

* * * * * (c) Water qual ity standard variances. The Regional Administrator, EPA Region 2, is authorized to grant variances from the water quality standards in paragraphs (a) and (b) of this section where the requirements of §131.14 are met.