[Federal Register Volume 74, Number 184 (Thursday, September 24, 2009)]
[Pages 48735-48737]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-23050]



[FRL-8959-1; Docket ID No. EPA-HQ-ORD-2009-0203]

Draft Toxicological Review of Trichloroacetic Acid: In Support of 
the Summary Information in the Integrated Risk Information System 

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of public comment period and listening session.


SUMMARY: EPA is announcing a public comment period and a public 
listening session for the external review draft document titled, 
``Toxicological Review of Trichloroacetic Acid: In Support of Summary 
Information on the Integrated Risk Information System (IRIS)'' (EPA/
635/R-09/003A). The draft document was prepared by the National Center 
for Environmental Assessment (NCEA) within the EPA's Office of Research 
and Development (ORD). The public comment period and the external peer-
review workshop, which will be scheduled at a later date and announced 
in the Federal Register, are separate processes that provide 
opportunities for all interested parties to comment on the document. 
EPA intends to forward the public comments that are submitted in 
accordance with this notice to the external peer-review panel prior to 
the meeting for their consideration. When finalizing the draft 
document, EPA intends to consider any public comments that EPA receives 
in accordance with this notice.
    EPA is also announcing a listening session to be held on November 
4, 2009, during the public comment period for this draft document. This 
listening session is a step in EPA's revised IRIS process, announced on 
May 21, 2009, to develop human health assessments for inclusion in the 
IRIS database. The purpose of the listening session is to allow all 
interested parties to present scientific and technical comments on 
draft IRIS health assessments to EPA and other interested parties 
during the public comment period and before the external peer review 
meeting. EPA welcomes the scientific and technical comments that will 
be provided to the Agency by the listening session participants. The 
comments will be considered by the Agency as it revises the draft 
assessment in response to the independent external peer review and the 
public comments. All presentations will become part of the official 
public record.
    EPA is releasing this draft document solely for the purpose of pre-
dissemination peer review under applicable information quality 
guidelines. This document has not been formally disseminated by EPA. It 
does not represent and should not be construed to represent any Agency 
policy or determination.

DATES: The public comment period begins September 24, 2009, and ends 
November 23, 2009. Technical comments should be in writing and must be 
received by EPA by November 23, 2009.
    The listening session on the draft IRIS health assessment for 
trichloroacetic acid will be held on November 4, 2009, beginning at 9 
a.m. and ending at 4 p.m., Eastern Daylight Time. If you want to make a 
presentation at the listening session, you should register by October 
28, 2009, indicate that you wish to make oral comments at the session, 
and indicate the length of your presentation. When you register, please 
indicate if you will need audio-visual aid (e.g., lap top and slide 
projector). In general, each presentation should be no more than 30 
minutes. If, however, there are more requests for presentations than 
the allotted time allows, then the time limit for each presentation 
will be adjusted. A copy of the agenda for the listening session will 
be available at the meeting.

[[Page 48736]]

If no speakers have registered by October 28, 2009, the listening 
session will be cancelled and EPA will notify those registered of the 
    Listening session participants who want EPA to share their comments 
with the external peer reviewers should also submit written comments 
during the public comment period using the detailed and established 
procedures described in the SUPPLEMENTARY INFORMATION section of this 
notice. Comments submitted to the docket prior to the end of the public 
comment period will be submitted to the external peer reviewers and 
considered by EPA in the disposition of public comments. All comments 
must be submitted to the docket, but comments received after the public 
comment period closes will not be submitted to the external peer 

ADDRESSES: The draft ``Toxicological Review of Trichloroacetic Acid: In 
Support of Summary Information on the Integrated Risk Information 
System (IRIS)'' is available primarily via the Internet on the NCEA 
home page under the Recent Additions and Publications menus at http://www.epa.gov/ncea. A limited number of paper copies are available from 
the Information Management Team, NCEA; telephone: 703-347-8561; 
facsimile: 703-347-8691. If you are requesting a paper copy, please 
provide your name, mailing address, and the document title.
    Comments may be submitted electronically via http://www.regulations.gov, by mail, by facsimile, or by hand delivery/
courier. Please follow the detailed instructions as provided in the 
SUPPLEMENTARY INFORMATION section of this notice.
    The listening session on the draft trichloroacetic acid assessment 
will be held at the EPA offices at Two Potomac Yard (North Building), 
7th Floor, Room 7100, 2733 South Crystal Drive, Arlington, Virginia 
22202. To attend the listening session, register by October 28, 2009, 
via e-mail at [email protected] (subject line: Trichloroacetic Acid 
Listening Session), by phone: 703-750-3000 extension 579, or by faxing 
a registration request to 703-642-6954 (please reference the 
``Trichloroacetic Acid Listening Session'' and include your name, 
title, affiliation, full address and contact information). Please note 
that to gain entrance to this EPA building to attend the meeting, 
attendees must have photo identification with them and must register at 
the guard's desk in the lobby. The guard will retain your photo 
identification and will provide you with a visitor's badge. At the 
guard's desk, attendees should give the name Christine Ross and the 
telephone number, 703-347-8592, to the guard on duty. The guard will 
contact Ms. Ross who will meet you in the reception area to escort you 
to the meeting room. When you leave the building, please return your 
visitor's badge to the guard and you will receive your photo 
    A teleconference line will also be available for registered 
attendees/speakers. The teleconference number is 866-299-3188 and the 
access code is 926-378-7897, followed by the pound sign (). 
The teleconference line will be activated at 8:45 am, and you will be 
asked to identify yourself and your affiliation at the beginning of the 
    Information on Services for Individuals with Disabilities: EPA 
welcomes public attendance at the ``Trichloroacetic Acid Listening 
Session'' and will make every effort to accommodate persons with 
disabilities. For information on access or services for individuals 
with disabilities, please contact Christine Ross at 703-347-8592 or 
[email protected]. To request accommodation of a disability, 
please contact Ms. Ross, preferably at least 10 days prior to the 
meeting, to give EPA as much time as possible to process your request.

FOR FURTHER INFORMATION CONTACT: For information on the public comment 
period, contact the Office of Environmental Information Docket; 
telephone: 202-566-1752; facsimile: 202-566-1753; or e-mail: 
[email protected].
    For information on the public listening sessions, please contact 
Christine Ross, IRIS Staff, National Center for Environmental 
Assessment, (8601P), U.S. EPA, 1200 Pennsylvania Avenue, NW., 
Washington, DC 20460; telephone: 703-347-8592; facsimile: 703-347-8689; 
or e-mail: [email protected].
    If you have questions about the document, contact Diana Wong, 
National Center for Environmental Assessment, (8601P), U.S. EPA, 1200 
Pennsylvania Avenue, NW., Washington, DC 20460; telephone: 703-347-
8633; facsimile: 703-347-8689; or e-mail: [email protected].


I. Information About IRIS

    IRIS is a database that contains potential adverse human health 
effects information that may result from chronic (or lifetime) exposure 
to specific chemical substances found in the environment. The database 
(available on the Internet at http://www.epa.gov/iris) contains 
qualitative and quantitative health effects information for more than 
540 chemical substances that may be used to support the first two steps 
(hazard identification and dose-response evaluation) of a risk 
assessment process. When supported by available data, the database 
provides oral reference doses (RfDs) and inhalation reference 
concentrations (RfCs) for chronic health effects, and oral slope 
factors and inhalation unit risks for carcinogenic effects. Combined 
with specific exposure information, government and private entities can 
use IRIS data to help characterize public health risks of chemical 
substances in a site-specific situation and thereby support risk 
management decisions designed to protect public health.

II. How To Submit Technical Comments to the Docket at http://www.regulations.gov

    Submit your comments, identified by Docket ID No. EPA-HQ-ORD-2009-
0203 by one of the following methods:
     http://www.regulations.gov: Follow the on-line 
instructions for submitting comments.
     E-mail: [email protected].
     Fax: 202-566-1753.
     Mail: Office of Environmental Information (OEI) Docket 
(Mail Code: 2822T), U.S. Environmental Protection Agency, 1200 
Pennsylvania Ave., NW., Washington, DC 20460. The phone number is 202-
     Hand Delivery: The OEI Docket is located in the EPA 
Headquarters Docket Center, EPA West Building, Room 3334, 1301 
Constitution Ave., NW., Washington, DC. The EPA Docket Center's 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. Such deliveries are only accepted during 
the docket's normal hours of operation, and special arrangements should 
be made for deliveries of boxed information. If you provide comments by 
mail or hand delivery, please submit one unbound original with pages 
numbered consecutively, and three copies of the comments. For 
attachments, provide an index, number pages consecutively with the 
comments, and submit an unbound original and three copies.
    Instructions: Direct your comments to Docket ID No. EPA-HQ-ORD-
2009-0203. Please ensure that your comments are submitted within the 
specified comment period. Comments received after the closing date will 
be marked ``late,'' and may only be considered if time permits. It is 
EPA's policy to

[[Page 48737]]

include all comments it receives in the public docket without change 
and to make the comments available online at http://www.regulations.gov, including any personal information provided, 
unless a 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 protected through http://www.regulations.gov or e-
mail. The http://www.regulations.gov Web site is an ``anonymous 
access'' system, which means EPA will not know your identity or contact 
information unless you provide it in the body of your comment. If you 
send an e-mail comment directly to EPA without going through http://www.regulations.gov, your e-mail 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, EPA recommends that you include your name and other contact 
information in the body of your comment and with any disk or CD-ROM you 
submit. If EPA cannot read your comment due to technical difficulties 
and cannot contact you for clarification, 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 
viruses. For additional information about EPA's public docket visit the 
EPA Docket Center homepage at http://www.epa.gov/epahome/dockets.htm.
    Docket: All documents in the docket are listed in the http://www.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, such 
as copyrighted material, will be publicly available only in hard copy. 
Publicly available docket materials are available either electronically 
in http://www.regulations.gov or in hard copy at the OEI Docket in the 
EPA Headquarters Docket Center.

    Dated: August 28, 2009.
Rebecca Clark,
Acting Director, National Center for Environmental Assessment.
[FR Doc. E9-23050 Filed 9-23-09; 8:45 am]