[Federal Register Volume 74, Number 211 (Tuesday, November 3, 2009)]
[Pages 56834-56835]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-26411]



[FRL-8974-2; Docket ID No. EPA-HQ-ORD-2009-0791]

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

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of public comment period.


SUMMARY: EPA is announcing a public comment period for the external 
review draft document titled, ``Toxicological Review of 
Trichloroethylene: In Support of Summary Information on the Integrated 
Risk Information System (IRIS)'' (EPA/635/R-09/011A). 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 EPA Science Advisory Board 
(SAB) 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 SAB 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 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 November 3, 2009, and ends 
February 1, 2010. Technical comments should be in writing and must be 
received by EPA by February 1, 2010. Due to the schedule of the SAB 
peer-review meeting, EPA cannot entertain any request for an extension 
of the public comment period.

ADDRESSES: The draft ``Toxicological Review of Trichloroethylene: 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.

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].
    If you have questions about the document, contact Weihsueh Chiu, 
National Center for Environmental Assessment (NCEA), Two Potomac Yard 
(North Building), 2733 S. Crystal Drive, Arlington VA 22202; telephone: 
703-347-8607; facsimile: 703-347-8692; 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-
0791 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

[[Page 56835]]

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-
2009-0791. 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 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: October 20, 2009.
Rebecca Clark,
Acting Director, National Center for Environmental Assessment.
[FR Doc. E9-26411 Filed 11-2-09; 8:45 am]