Federal Register / Vol. 89, No. 220 / Thursday, November 14, 2024 / Notices 89993 

appearance of a loss of impartiality as 

defined by Federal regulation. The form 

may be viewed at https://www.epa.gov/ 

waterfinancecenter/efab, but this form 

should not be submitted as part of a 

nomination. 

Experience and Expertise Sought for 

the EFAB: The Board seeks to maintain 

diverse representation across all 

workforce sectors (state/local/tribal 

government, business (industry and 

finance), and nonprofit organizations) 

and geographic regions of the United 

States. Nominees should demonstrate 

experience in environmental finance 

and/or reducing the cost of financing 

environmental protection in various 

environmental media (e.g., air, energy, 

land, and water). Experience and 

expertise sought include, but are not 

limited to, the following areas: 

commercial banking; environmental and 

financial resiliency; environmental 

financing including sector-specific 

experience; environmental justice; 

environmental, social, and corporate 

governance; environmental equity 

financing; Federal investments in 

environmental financing; green banking; 

infrastructure financing; insurance 

markets; local utility management and 

finance; public-public and publicprivate partnerships; regulators; 

resource conservation; sustainable 

community partnerships; and 

sustainable economies. 

In accordance with Executive Order 

14035 (June 25, 2021) and consistent 

with law, EPA values and welcomes 

opportunities to increase diversity, 

equity, inclusion, and accessibility on 

its Federal advisory committees. EPA’s 

Federal advisory committees strive to 

have a workforce that reflects the 

diversity of the American people. 

Nominee qualifications will be assessed 

under the mandates of the FACA, which 

requires that committees be balanced in 

terms of the points of view represented 

and the functions to be performed; for 

the Board, this balance includes 

diversity across a broad range of 

constituencies, sectors, and groups. In 

addition to this notice, other sources 

may be utilized to make interested 

parties aware of this solicitation for 

nominees. EPA may also consider 

nominations received through this 

solicitation in the event of 

unanticipated vacancies on the Board. 

How to Submit Nominations: Any 

interested person or organization may 

nominate qualified person(s) to be 

considered for appointment to the 

EFAB. Individuals may self-nominate. 

Nominations can only be submitted 

via email to efab@epa.gov. Nominations 

should include the following 

information: Contact information for the 

person making the nomination; contact 

information for the nominee (if 

different), including full name and title, 

business mailing address, telephone, 

and email address; the specific areas of 

experience or expertise of the nominee; 

the nominee’s curriculum vitae or 

resume; and a biographical sketch of the 

nominee indicating current position and 

recent service on other Federal advisory 

committees or national professional 

organizations. A supporting letter of 

endorsement is encouraged, but not 

required. 

Evaluation Criteria: The following 

criteria will be used to evaluate 

nominees: Residence in the United 

States; professional knowledge of, and 

experience with, environmental 

financing activities; senior-level 

experience that fills a gap in Board 

representation or brings a new and 

relevant dimension to its deliberations; 

demonstrated ability to work in a 

consensus-building process with a wide 

range of representatives from diverse 

constituencies; and willingness to serve 

a two or three-year term as an active and 

contributing member, with possible 

reappointment to a second term. 

Andrew D. Sawyers, 

Director, Office of Wastewater Management, 

Office of Water. 

[FR Doc. 2024–26391 Filed 11–13–24; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

[EPA–HQ–OPPT–2016–0723; FRL–7918–03– 

OCSPP] 

1,4-Dioxane; Supplement to the Risk 

Evaluation and Revised Unreasonable 

Risk Determination Under the Toxic 

Substances Control Act (TSCA); Notice 

of Availability 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice. 

SUMMARY: The Environmental Protection 

Agency (EPA or the Agency) is 

announcing the availability of the final 

supplement to the risk evaluation and 

revised unreasonable risk determination 

under the Toxic Substances Control Act 

(TSCA) for 1,4-dioxane. The purpose of 

risk evaluations under TSCA is to 

determine whether a chemical 

substance presents an unreasonable risk 

of injury to human health or the 

environment, without consideration of 

costs or non-risk factors, including 

unreasonable risk to potentially exposed 

or susceptible subpopulations identified 

as relevant to the risk evaluation by 

EPA, under the conditions of use. The 

Agency used the best available science 

to prepare this final supplement to the 

risk evaluation and has determined that 

1,4-dioxane poses unreasonable risk to 

human health. Under TSCA, EPA must 

initiate risk management actions to 

address the unreasonable risk. 

ADDRESSES: The docket for this action, 

identified by docket identification (ID) 

number EPA–HQ–OPPT–2016–0723, is 

available online at https://

www.regulations.gov. Additional 

information about dockets generally, 

along with instructions for visiting the 

docket in-person, is available at https:// 

www.epa.gov/dockets. 

FOR FURTHER INFORMATION CONTACT: 

For technical information: Cindy 

Wheeler, Existing Chemicals Risk 

Management Division (7404M), Office of 

Pollution Prevention and Toxics, 

Environmental Protection Agency, 1200 

Pennsylvania Ave. NW, Washington, DC 

20460–0001; telephone number: (202) 

566–0484; email address: 

Dioxane.TSCA@epa.gov. 

For general information: The TSCAHotline, ABVI-Goodwill, 422 South 

Clinton Ave., Rochester, NY 14620; 

telephone number: (202) 554–1404; 

email address: TSCA-Hotline@epa.gov. 

SUPPLEMENTARY INFORMATION: 

I. Executive Summary 

A. Does this action apply to me? 

This action is directed to the public 

in general and may be of particular 

interest to those involved in the 

manufacture, processing, distribution, 

use, and disposal of 1,4-dioxane, related 

industry trade organizations, nongovernmental organizations with an 

interest in human and environmental 

health, State and local governments, 

Tribal Nations, and/or those interested 

in the assessment of risks involving 

chemical substances and mixtures 

regulated under TSCA. As such, the 

Agency has not attempted to describe all 

the specific entities that this action 

might apply to. If you need help 

determining applicability, consult the 

technical contact listed under FOR

FURTHER INFORMATION CONTACT. 

B. What is the Agency’s authority for 

taking this action? 

The Agency is conducting this risk 

evaluation under TSCA section 6, 15 

U.S.C. 2605, which requires that EPA 

conduct risk evaluations on chemical 

substances and identifies the minimum 

components EPA must include in all 

chemical substance risk evaluations. 

Each risk evaluation must be conducted 

consistent with the best available 

science, be based on the weight of 


ddrumheller on DSK120RN23PROD with NOTICES1
89994 Federal Register / Vol. 89, No. 220 / Thursday, November 14, 2024 / Notices 

scientific evidence and consider 

reasonably available information. 15 

U.S.C. 2625(h), (i), and (k). See also the 

implementing procedural regulations at 

40 CFR part 702. 

C. What action is the Agency taking? 

EPA is announcing the availability of 

the final supplement to the 1,4-dioxane 

risk evaluation and final revised 

unreasonable risk determination under 

TSCA. The purpose of risk evaluations 

under TSCA is to determine whether a 

chemical substance presents an 

unreasonable risk of injury to health or 

the environment, without consideration 

of costs or non-risk factors, including 

unreasonable risk to potentially exposed 

or susceptible subpopulations identified 

as relevant to the risk evaluation by 

EPA, under the conditions of use. EPA 

has used the best available science to 

prepare this final risk evaluation and 

has determined that 1,4-dioxane poses 

unreasonable risk to human health. 

Upon a determination of unreasonable 

risk, EPA must initiate risk management 

action as required pursuant to 15 U.S.C 

2605(a) to address the unreasonable 

risk. 

II. Background 

In 2016, EPA announced its 

designation of 1,4-dioxane for risk 

evaluation under TSCA (81 FR 91927, 

December 19, 2016 (FRL–9956–47)). 1,4- 

Dioxane was one of the first 10 chemical 

substances undergoing the TSCA risk 

evaluation process after passage of the 

Frank R. Lautenberg Chemical Safety for 

the 21st Century Act, which amended 

TSCA. 1,4-Dioxane is primarily used as 

a solvent in a variety of commercial and 

industrial applications such as the 

manufacture of other chemicals (e.g., 

adhesives, sealants) or as a processing 

aid or laboratory chemical. Although 

there are no direct consumer uses of 1,4- 

dioxane, it is present as a contaminant 

in commercial and consumer products 

and is produced as a byproduct through 

several manufacturing processes 

including ethoxylation, sulfonation, 

sulfation, and esterification. 

In the ‘‘Draft Risk Evaluation for 1,4- 

Dioxane’’ released in June 2019 

(hereafter ‘‘2019 draft risk evaluation’’) 

(84 FR 31315, July 1, 2019 (FRL–9995– 

40)), EPA reviewed the exposures and 

hazards of 1,4-dioxane for industrial 

and commercial uses and assessed risk 

from occupational exposures and 

surface water exposures to 

environmental organisms. That 

assessment, which included the 

physical and chemical properties, 

lifecycle information, environmental 

fate and transport information, and 

hazard identification and dose-response 

analysis, was peer reviewed by the 

Science Advisory Committee on 

Chemicals (SACC). In November 2020, 

EPA released the ‘‘Draft Supplemental 

Analysis to the Draft Risk Evaluation for 

1,4-Dioxane’’ (hereafter ‘‘2020 draft 

supplement’’) that assessed conditions 

of use (COUs) of 1,4-dioxane as a 

contaminant in consumer products and 

general population exposure from 

incidental contact with surface water. 

The Agency determined that the 2020 

draft supplement did not warrant 

additional peer review as there was no 

novel analysis. The 2019 draft risk 

evaluation and 2020 draft supplement 

were both incorporated into the ‘‘Final 

Risk Evaluation for 1,4-Dioxane’’ that 

was released in December 2020 

(hereinafter ‘‘2020 final risk 

evaluaton’’). 

In early 2021, and in response to 

presidential executive orders and policy 

changes, EPA reviewed the risk 

evaluations for the first 10 chemical 

substances to ensure that the risk 

evaluations met the requirements of 

TSCA, including the requirement to use 

the best available science in decisionmaking. As a result of that review, the 

Agency announced plans to revise 

specific aspects of the first 10 risk 

evaluations to ensure that they 

appropriately identify unreasonable 

risks and thereby help to ensure the 

protection of human health and the 

environment. EPA determined an 

additional supplement to the 2020 final 

risk evaluation was needed to consider 

critical exposure pathways not 

previously assessed. Specifically, that 

additional supplement (hereinafter 

‘‘2023 draft supplement’’) includes 

evaluation of additional conditions of 

use in which 1,4-dioxane is a byproduct 

in industrial processes and a 

contaminant in certain commercial 

products, and evaluates risks from 

general population exposures to 1,4- 

dioxane released to ambient surface 

water and groundwater, ambient air, 

and land. To evaluate these additional 

exposure pathways, the Agency used 

new methods and novel applications of 

existing methods. These new methods 

were subject to public comment and 

peer review as part of the 2023 draft 

supplement (88 FR 48249, July 26, 2023 

(FRL–7918–02–OCSPP)). 

Along with the 2023 draft 

supplement, EPA also published and 

took public comment on draft revisions 

to the unreasonable risk determination 

for 1,4-dioxane that considers the 2020 

risk evaluation and the 2023 draft 

supplement. The 2023 draft revision to 

the unreasonable risk determination 

reflects policy changes announced in 

June 2021, and EPA preliminarily 

determined that 1,4-dioxane presents an 

unreasonable risk of injury to health 

when evaluated under its conditions of 

use. 

The final revised unreasonable risk 

determination that is being released 

with this announcement considers the 

2020 risk evaluation and the final 

supplement that is also being released 

with this announcement. This final 

revised unreasonable risk determination 

supersedes the condition of use-specific 

no unreasonable risk determinations in 

the 2020 risk evaluation (and withdraws 

the associated order) and makes a final 

determination of unreasonable risk for 

1,4-dioxane as discussed in Unit III. 

III. Unreasonable Risk Determination 

EPA has determined that 1,4-dioxane 

presents an unreasonable risk of injury 

to human health under the conditions of 

use. The Agency has determined that 

the unreasonable risk to human health 

presented by 1,4-dioxane is based on 

cancer and non-cancer risks (from liver 

toxicity and effects in the olfactory 

epithelium) to workers and 

occupational non-users (ONUs) from 

inhalation and dermal exposures, and 

cancer risks to the general population, 

including fenceline communities, from 

exposures to 1,4-dioxane in drinking 

water sourced from surface water 

contaminated with industrial discharges 

of 1,4-dioxane (including when it is 

generated as a byproduct) and downthe-drain disposals of commercial and 

consumer products that are 

contaminated with 1,4-dioxane 

generated as a byproduct. 

Consistent with the statutory 

requirements of TSCA section 6(a), EPA 

will propose risk management 

regulatory actions to the extent 

necessary so that 1,4-dioxane no longer 

presents an unreasonable risk to health. 

The Agency expects to focus its risk 

management action on the conditions of 

use that significantly contribute to the 

unreasonable risk. However, it should 

be noted that under TSCA section 6(a), 

EPA is not limited to regulating the 

specific activities found to contribute 

significantly to unreasonable risk and 

may select from among a suite of risk 

management requirements in TSCA 

section 6(a) related to manufacture 

(including import), processing, 

distribution in commerce, commercial 

use, and disposal as part of its 

regulatory options to address the 

unreasonable risk. As a general 

example, EPA may regulate upstream 

activities (e.g., processing, distribution 

in commerce) to address downstream 

activities (e.g., consumer uses) 

contributing significantly to 

unreasonable risk, even if the upstream 


ddrumheller on DSK120RN23PROD with NOTICES1
Federal Register / Vol. 89, No. 220 / Thursday, November 14, 2024 / Notices 89995 

activities do not contribute significantly 

to the unreasonable risk. 

In addition, as part of its evaluation, 

EPA has determined that 1,4-dioxane in 

drinking water sourced from surface 

water contaminated with industrial 

discharges of 1,4-dioxane (including 

when it is generated as a byproduct) and 

down-the-drain disposals of commercial 

and consumer products that are 

contaminated with 1,4-dioxane 

significantly contribute to the 

unreasonable risk from 1,4-dioxane. 

TSCA section 9(b) requires EPA to 

coordinate TSCA actions with actions 

taken under other Agency authorities. In 

coordinating regulatory action under 

TSCA with other offices at EPA, the 

Agency considered the authorities of the 

Safe Drinking Water Act (SDWA) and 

has determined that certain regulatory 

actions under the SDWA may also be 

appropriate. Therefore, as described in 

more detail in a memorandum included 

in this docket, and consistent with 

TSCA section 9(b)(1), OCSPP has 

memorialized this agreement for 

coordinated action on risks from 1,4- 

dioxane contamination in drinking 

water through actions under both TSCA 

section 6(a) and, for Office of Water 

consideration of remaining risks and 

appropriate action, under SDWA. 

For more information about the TSCA 

risk evaluation process for existing 

chemicals, go to https://www.epa.gov/ 

assessing-and-managing-chemicalsunder-tsca. 

Authority: 15 U.S.C. 2601 et seq. 

Dated: November 7, 2024. 

Michal Freedhoff, 

Assistant Administrator, Office of Chemical 

Safety and Pollution Prevention. 

[FR Doc. 2024–26342 Filed 11–13–24; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

[EPA–HQ–OW–2024–0482; FRL–12390–01– 

OW] 

Agency Information Collection 

Activities; Proposed Information 

Collection Request; Comment 

Request; 2022 National Pollutant 

Discharge Elimination System 

(NPDES) Construction General Permit 

(CGP) for Stormwater Discharges From 

Construction Activities (Renewal) 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice. 

SUMMARY: The Environmental Protection 

Agency (EPA) is planning to submit an 

information collection request (ICR), 

2022 National Pollutant Discharge 

Elimination System (NPDES) 

Construction General Permit (CGP) for 

Stormwater Discharges from 

Construction Activities (Renewal) (EPA 

ICR Number 2686.03, OMB Control 

Number 2040–0305) to the Office of 

Management and Budget (OMB) for 

review and approval in accordance with 

the Paperwork Reduction Act (PRA). 

Before doing so, EPA is soliciting public 

comments on specific aspects of the 

proposed information collection as 

described below. This is a proposed 

renewal of the current ICR, which is 

currently approved through February 

28, 2025. This notice allows for 60 days 

for public comments. 

DATES: Comments must be submitted on 

or before January 13, 2025. 

ADDRESSES: Submit your comments, 

referencing Docket ID Number EPA– 

HQ–OW–2024–0482 to EPA online 

using www.regulations.gov (our 

preferred method) or by mail to: EPA 

Docket Center, Environmental 

Protection Agency, Mail Code 28221T, 

1200 Pennsylvania Ave. NW, 

Washington, DC 20460. EPA’s policy is 

that all comments received will be 

included in the public docket without 

change including any personal 

information provided, unless the 

comment includes profanity, threats, 

information claimed to be Confidential 

Business Information (CBI) or other 

information whose disclosure is 

restricted by statute. 

FOR FURTHER INFORMATION CONTACT: Greg 

Schaner, Water Permits Division, Office 

of Wastewater Management, Office of 

Water at telephone number: (202) 564– 

0721 or email address: schaner.greg@

epa.gov. 

SUPPLEMENTARY INFORMATION: This is a 

proposed renewal of the current ICR, 

which is currently approved through 

February 28, 2025. An agency may not 

conduct or sponsor and a person is not 

required to respond to a collection of 

information unless it displays a 

currently valid OMB control number. 

This notice allows 60 days for public 

comments. Supporting documents, 

which explain in detail the information 

that the EPA will be collecting, are 

available in the public docket for this 

ICR. The docket can be viewed online 

at www.regulations.gov or in person at 

the EPA Docket Center, WJC West, 

Room 3334, 1301 Constitution Ave. NW, 

Washington, DC. The telephone number 

for the Docket Center is 202–566–1744. 

For additional information about EPA’s 

public docket, visit http://www.epa.gov/ 

dockets. 

Pursuant to section 3506(c)(2)(A) of 

the PRA, EPA is soliciting comments 

and information to enable it to: (i) 

evaluate whether the proposed 

collection of information is necessary 

for the proper performance of the 

functions of the Agency, including 

whether the information will have 

practical utility; (ii) evaluate the 

accuracy of the Agency’s estimate of the 

burden of the proposed collection of 

information, including the validity of 

the methodology and assumptions used; 

(iii) enhance the quality, utility, and 

clarity of the information to be 

collected; and (iv) minimize the burden 

of the collection of information on those 

who are to respond, including through 

the use of appropriate forms of 

information technology. EPA will 

consider the comments received and 

amend the ICR as appropriate. The final 

ICR package will then be submitted to 

OMB for review and approval. At that 

time, EPA will issue another Federal 

Register notice to announce the 

submission of the ICR to OMB and the 

opportunity to submit additional 

comments to OMB. 

Abstract: EPA issued the 2022 

National Pollutant Discharge 

Elimination System (NPDES) general 

permit for stormwater discharges from 

construction activities, also referred to 

as the ‘‘2022 Construction General 

Permit,’’ or the ‘‘2022 CGP,’’ on 

February 17, 2022. The 2022 CGP is 

issued for five (5) years to provide 

permit coverage to eligible construction 

operators in all areas of the country 

where EPA is the NPDES permitting 

authority. 

The current ICR for the 2022 CGP 

expires on February 28, 2025. This 

proposed ICR will renew the existing 

ICR prior to expiration. The proposed 

ICR renewal will further EPA’s specific 

needs to collect data related to the 2022 

CGP, which include the following: 

• To provide information supporting 

operator eligibility to be covered by the 

permit; 

• To provide information to EPA and 

states to prioritize permit activities; 

• To provide information on the 

quality of dewatering discharges to 

sensitive waters; 

• To determine whether operators are 

in compliance with permit conditions; 

and 

• To provide information to EPA to 

determine the need for and develop 

permit conditions. 

The burden and costs associated with 

the entire NPDES program, including 

the administration of the 2017 CGP, are 

accounted for in the 2017 NPDES 

Program ICR (EPA ICR number 0229.23 

OMB control no. 2040–0004). Certain 

changes in the 2022 CGP required 

revisions to the NPDES Program ICR to 


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