91740 Federal Register / Vol. 89, No. 224 / Wednesday, November 20, 2024 / Notices 

number EPA–HQ–OPPT–2024–0131, 

online at https://www.regulations.gov. 

Follow the online instructions for 

submitting comments. Do not submit 

electronically any information you 

consider to be Confidential Business 

Information (CBI) or other information 

whose disclosure is restricted by statute. 

Additional instructions on commenting 

and visiting the docket, along with more 

information about dockets generally, is 

available at https://www.epa.gov/ 

dockets. 

FOR FURTHER INFORMATION CONTACT:

For technical information contact: 

Thomas Groeneveld, Existing Chemicals 

Risk Management Division, Office of 

Pollution Prevention and Toxics, 

Environmental Protection Agency, 1200 

Pennsylvania Ave. NW, Washington, DC 

20460–0001; telephone number: (202) 

566–1188; email address: 

groeneveld.thomas@epa.gov. 

For general information contact: The 

TSCA-Hotline, ABVI-Goodwill, 422 

South Clinton Ave., Rochester, NY 

14620; telephone number: (202) 554– 

1404; email address: TSCA-Hotline@

epa.gov. 

SUPPLEMENTARY INFORMATION: EPA is 

hereby extending the comment period 

established in the Federal Register 

document of September 30, 2024 (89 FR 

79581) (FRL–12261–01–OCSPP), to give 

stakeholders additional time to review 

that document, identify and gather 

relevant information, and prepare 

comments. EPA is extending the 

comment period, which was set to end 

on November 29, 2024, to December 30, 

2024. 

To submit comments or access the 

docket, please follow the detailed 

instructions provided under ADDRESSES. 

If you have questions, consult the 

technical person listed under FOR

FURTHER INFORMATION CONTACT. 

Authority: 15 U.S.C. 2605. 

Dated: November 15, 2024. 

Michal Freedhoff, 

Assistant Administrator, Office of Chemical 

Safety and Pollution Prevention. 

[FR Doc. 2024–27111 Filed 11–19–24; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

[FRL–12294–01–R9] 

Notice of Availability of Final 

Designation of Certain Stormwater 

Discharges Within Two Watersheds in 

Los Angeles County, California Under 

the National Pollutant Discharge 

Elimination System of the Clean Water 

Act 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice of availability. 

SUMMARY: The Regional Administrator 

of the Environmental Protection Agency 

(EPA) Region 9 is providing notice of 

the availability of EPA’s Final 

Designation of stormwater discharges 

from certain commercial, industrial and 

institutional (CII) sites in the Alamitos 

Bay/Los Cerritos Channel Watershed 

and the Dominguez Channel and Los 

Angeles/Long Beach Inner Harbor 

Watershed in Los Angeles County, 

California for National Pollutant 

Discharge Elimination System (NPDES) 

permitting under the Clean Water Act 

(CWA). 

DATES: EPA’s Final Designation of 

Stormwater Discharges from Certain 

Commercial, Industrial and Institutional 

Sites in the Alamitos Bay/Los Cerritos 

Channel Watershed and the Dominguez 

Channel and Los Angeles/Long Beach 

Inner Harbor Watershed in Los Angeles 

County (‘‘EPA’s Final Designation’’) was 

signed on November 5, 2024. 

FOR FURTHER INFORMATION CONTACT: 

Eugene Bromley, EPA Region 9, Water 

Division, NPDES Permits Section 

(WTR–2–3), 75 Hawthorne Street, San 

Francisco, CA 94105; telephone (415) 

972–3510; email: bromley.eugene@

epa.gov, or R9RDA@epa.gov. 

SUPPLEMENTARY INFORMATION: 

A. Does this action apply to me? 

Entities potentially regulated by this 

action include a wide variety of 

privately-owned CII facilities such as 

shopping centers, office complexes, 

warehouses, private schools and 

hospitals, and various manufacturing 

facilities. Entities affected by this action 

are located within either of two 

watersheds in Los Angeles County, in 

California: the Los Cerritos Channel/ 

Alamitos Bay Watershed or the 

Dominguez Channel and Los Angeles/ 

Long Beach Inner Harbor Watershed. 

This description of affected entities is 

not intended to be exhaustive, but rather 

provides a guide for readers regarding 

entities likely to be affected by this 

action. This description of affected 

activities includes the types of entities 

that EPA is now aware could potentially 

be affected by this action. Other types of 

entities not included could also be 

affected. To determine whether your 

entity is affected by this action, you 

should also review the description of 

EPA’s action in documents online at the 

website listed in the section C below. If 

you have questions regarding the 

applicability of this action to a 

particular entity, consult the person 

listed in the FOR FURTHER INFORMATION

CONTACT section. 

B. Summary of Final Designation 

In the Final Designation, EPA has 

determined that stormwater discharges 

from certain CII sites in the Los Cerritos 

Channel/Alamitos Bay and Dominguez 

Channel and Los Angeles/Long Beach 

Inner Harbor Watersheds in Los Angeles 

County are contributing to violations of 

water quality standards and require 

NPDES permit coverage under the CWA. 

The Final Designation differs from the 

Revised Preliminary Designation of 

November 2, 2023 (88 FR 75282) in that 

EPA is not designating privatelyoperated facilities at the Ports of Long 

Beach and Los Angeles at this time. EPA 

is taking a phased approach to this Final 

Designation such that EPA may consider 

designating stormwater discharges from 

additional CII sources in the future. 

This Final Designation is in response 

to two September 15, 2015 petitions 

entitled ‘‘Petition For A Determination 

That Stormwater Discharges From 

Commercial, Industrial, And 

Institutional Sites Contribute To Water 

Quality Standards Violations in 

Dominguez Channel and the Los 

Angeles/Long Beach Inner Harbor (Los 

Angeles County, California) and Require 

Clean Water Act Permits,’’ and ‘‘Petition 

For A Determination That Stormwater 

Discharges From Commercial, 

Industrial, And Institutional Sites 

Contribute To Water Quality Standards 

Violations in the Alamitos Bay/Los 

Cerritos Watershed (Los Angeles 

County, California) And Require Clean 

Water Act Permits’’ as well as an order 

from the U.S. District Court for the 

Central District of California in Los 

Angeles Waterkeeper v. Pruitt, 320 F. 

Supp.3d 1115 (C.D. CA 2018). 

EPA’s Final Designation is made 

pursuant to CWA sections 402(p)(2)(E) 

and (6) and EPA’s implementing 

regulations at 40 CFR 122.26(a)(1)(v) 

and 40 CFR 122.26(a)(9)(i)(D) that 

authorize EPA to designate stormwater 

discharges for regulation under the 

NPDES permitting program that are 

contributing to violations of water 

quality standards but are not otherwise 


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Federal Register / Vol. 89, No. 224 / Wednesday, November 20, 2024 / Notices 91741 

required to be permitted under EPA’s 

stormwater regulations. 

C. How can I get copies of this 

document and other related 

information? 

Details of EPA’s Final Designation, 

Response to Public Comments and 

ancillary materials may be viewed on 

EPA Region 9’s website at: https://

www.epa.gov/npdes-permits/residualdesignation-authority-addressstormwater-quality-problems-epaspacific. 

Dated: November 13, 2024. 

Martha Guzman Aceves, 

Regional Administrator, EPA Region 9. 

[FR Doc. 2024–27128 Filed 11–19–24; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

[EPA–HQ–OPP–2024–0414; FRL–12308–01– 

OCSPP] 

Pesticides; Draft Guidance; Evaluating 

the Efficacy of Pre-Saturated/ 

Impregnated Antimicrobial Towelettes 

for Disinfection Claims; Notice of 

Availability and Request for Comment 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice. 

SUMMARY: The Environmental Protection 

Agency (EPA or Agency) is announcing 

the availability of and soliciting 

comment on its draft guidance for 

adding disinfectant efficacy claims 

against bacteria to antimicrobial 

towelettes for use on hard non-porous 

surfaces. Specifically, the guidance 

document describes a pathway for 

efficacy testing using a new 

standardized method designed 

specifically for antimicrobial towelettes, 

how to prepare an application for 

registration, and regulatory guidance for 

pesticidal claims for those products. 

DATES: Comments must be received on 

or before January 21, 2025. 

ADDRESSES: Submit your comments, 

identified by docket identification (ID) 

number EPA–HQ–OPP–2024–0414, at 

https://www.regulations.gov. Follow the 

online instructions for submitting 

comments. Do not submit electronically 

any information you consider to be 

Confidential Business Information (CBI) 

or other information whose disclosure is 

restricted by statute. Additional 

instructions on commenting or visiting 

the docket, along with more information 

about dockets generally, is available at 

https://www.epa.gov/dockets. 

FOR FURTHER INFORMATION CONTACT: 

Ryan Karcher, Microbiology Laboratory 

Branch (7503M), Biological and 

Economic Analysis Division, Office of 

Pesticide Programs, Environmental 

Protection Agency, Environmental 

Science Center, 701 Mapes Road Ft. 

Meade, MD 20755–5350; telephone 

number: (410) 305–2860; email address: 

karcher.ryan.s@epa.gov. 

SUPPLEMENTARY INFORMATION: 

I. Executive Summary 

A. Does this action apply to me? 

This action is directed to the public 

in general; although this action may be 

of particular interest to those persons 

who are or may be required to conduct 

testing of chemical substances under the 

Federal Insecticide, Fungicide, and 

Rodenticide Act (FIFRA). Since other 

entities may also be interested, the 

Agency has not attempted to describe all 

the specific entities that may be affected 

by this action. If you have any questions 

regarding the applicability of this action 

to a particular entity, consult the person 

listed under FOR FURTHER INFORMATION

CONTACT. 

B. What is the Agency’s authority for 

taking this action? 

This guidance is issued under the 

Federal Insecticide, Fungicide, and 

Rodenticide Act, 7 U.S.C. 136 et seq. 

C. What action is the Agency taking? 

EPA is announcing the availability of 

and soliciting comment on a draft 

guidance document that describes a 

pathway for efficacy testing using a new 

standardized method designed 

specifically for antimicrobial towelettes, 

how to prepare an application for 

registration, and regulatory guidance for 

pesticidal claims for those products. 

Specifically, the guidance describes the 

use of a standard test method, ASTM 

E3363, for adding for adding efficacy 

claims to pre-saturated antimicrobial 

towelettes for use on hard, non-porous 

surfaces against bacteria. 

D. What are the incremental economic 

impacts of this action? 

This action has no substantive 

economic impacts because the draft 

guidance will not affect the regulatory 

status of any registration or application 

for registration of any pesticide product. 

Applicants are already required to 

conduct testing, and the adoption of this 

new testing method does not alter those 

requirements. The agency believes, 

however, that the draft guidance has the 

potential to reduce the regulatory 

burden by providing a more streamlined 

process for antimicrobial products 

intended to treat bacterial public health 

pathogens with pre-saturated/ 

impregnated towelettes on hard, nonporous surfaces. 

E. What should I consider as I prepare 

my comments for EPA? 

1. Submitting CBI. 

Do not submit CBI to EPA through 

email or https://www.regulations.gov. If 

you wish to include CBI in your 

comment, please follow the applicable 

instructions at https://www.epa.gov/ 

dockets/commenting-epa-dockets#rules 

and clearly mark the information that 

you claim to be CBI. Information so 

marked will not be disclosed except in 

accordance with procedures set forth in 

40 CFR parts 2. 

2. Tips for preparing your comments. 

When preparing and submitting your 

comments, see the commenting tips at 

https://www.epa.gov/dockets/ 

commenting-epa-dockets. 

II. Background 

Towelettes are a unique combination 

of antimicrobial chemical and towelette 

substrate pre-packaged as a unit in fixed 

proportions for application. Previous 

test methods used to evaluate the 

efficacy of antimicrobial towelettes were 

originally designed to test liquid 

formulations and had to be modified to 

accommodate towelettes. EPA received 

requests from registrants and 

stakeholders to implement use of the 

recently standardized efficacy method 

for assessing antimicrobial towelettes 

identified as ASTM E3363. Test method 

ASTM E3363 provides a specific and 

consistent means to assess the efficacy 

of towelettes through the combination of 

chemical inactivation of the test 

microbe and mechanical removal of 

inoculum from a surface. 

EPA received requests from 

registrants and stakeholders to 

implement use of the recently 

standardized efficacy method for 

assessing antimicrobial towelettes 

(ASTM E3363). EPA worked closely 

with stakeholders during the 

development of this test method. There 

is significant interest from stakeholders 

and the public in the availability of 

antimicrobial towelettes with these 

public health claims, particularly in 

institutional, clinical, and health-care 

settings. 

III. Do guidance documents contain 

binding requirements? 

As guidance, these documents are not 

binding on the Agency or any outside 

parties, and the Agency may depart 

from it where circumstances warrant 

and without prior notice. While EPA 

has made every effort to ensure the 


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