UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

NATIONAL CENTER FOR ENVIRONMENTAL ASSESSMENT 

WASHINGTON, DC 20460 

APR 1 6 2014 

MEMORANDUM 

OFFICE OF 

RESEARCH AND DEVELOPMENT 

SUBJECT: Posting PA-HQ-0~2~4-03 1 3 o Regulations.gov f(lr Public Access 

FROM: 

ORD/NC

Joe DeSantis 

EA/IRIS D~ sion 

~ 

Thru: _}ofUV ince Cogliano U ~fl O Director, IRIS Division ..u 

Otlice of Research and Development 

National Center fiJr Environmental Assessment 

This memorandum authorizes the posting of EPA-l-IQ-ORD-201 4-0313, IRIS 

Assessment Materials for llexavalent Chromium, to Regulations.gov f(lr public access. 

In accordance with recently announced enhancements of the IRIS program, EPA will 

hold a series of public meetings during calendar years 2013 and 201 4 ( 78 FR 48674, 

August 9, 2013) to obtain public input on the draft IRIS assessments. The purpose of the 

public meetings is to allow all interested parties to present scientitic and technical 

comments on preliminary materials t()r chemical assessments, and on draft IRIS health 

assessments. to EPA and other interested parties attending the meeting. EPA has released 

preliminary materials related to Hexavalent Chromium which are available on the IRIS 

website at htt 1:.'/v.,·,..,,,_c Ja.uov/iri: 1 1uhlicmt:ctinu/. These materials are available to the 

public to review and submit comments and materials that will be discussed at one of the 

IRIS bimonthly public meetings. Detailed information on these meetings will be posted 

on the IRIS website approximately 60 days before each meeting. This docket will be 

open from April 17,2014 to April 17,2015. 

Submit your comments, identified by Docket ID No. EPA-l-IQ-ORD-2014-0313 by one 

of the following methods: 

• "''' ,.., .t\~ l'. ulation:.!.!.ov : Follow the on-line instructions for submitting 

comments. 

• Email: Docket ORD a .cpu.gt)\. 

• Fax: 202-566-9744 
• Mail: Office of Environmental Information (OEI) Docket. U.S. 

Environmental Protection Agency, Mail code 28221 T, 1200 Pennsylvania 

Ave, NW, Washington, DC 20460. 

• Hand Delivery: The OEI Docket is located in the EPA lleadquarters 

Docket Center, EPA West Building, Room 3334, 1301 Constitution Ave, 

NW., Washington DC. The EPA Docket Center's Public Reading Room 

is open from 8:30a.m. to 4:30p.m., Monday through Friday, excluding 

legal holidays. The telephone number for the Public Reading Room is 

202-566-1744. Deliveries are only accepted during the Docket's normal 

hours of operation, and special arrangements should be made f()r 

deliveries of boxed int()rmation. 

EJ> A's policy is that all comments received will be included in the public docket without 

change and may be made available online at h_ttp :i ~. re wl ti !! oy, including any 

personal information provided, unless the comment includes information claimed to be 

Confidential Business Information (CBI) or other inf()rmation whose disclosure is 

restricted by statute. Do not submit inf(mnation that you consider to be CBI or otherwise 

protected through ttp://w\y_~~~!!ulatiJm!:> !! V or e-mail. The 1lt.lr16:HH\ :.!~egul tion~~ 

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 

h_gp: // \\W\~ .re!2 uht! 2!l~~~. 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 f()r clarification, EPA may not be able to consider your comment. 

Electronic tiles should avoid the use of special characters, avoid any form of encryption, 

and be free of any defects or viruses. For additional int()rmation about EPA's public 

docket, visit the EPA Docket Center homepage at 

http://v. '"" \\ ,epa.1.!ov/cpahomc/dockcts. htm. 

Should you have any questions regarding this memorandum, please contact Eric Shultz at 

202-566- I 883, or via email at schultz.eric CP<L .