UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

Washington, DC 20460 

November 20, 2015 

MEMORANDUM 

OFRCEOF 

RESEARCH AND 

DEVELOPMENT 

SUBJECT: Posting EPA-H~D- 012-083 to Regulations.gov for Public Access 

Joe DeSantis . FROM: 

ORD/NCEA/IR Division 1 ~ 

Thru: r VinceCogliano ~~ 11/'2....4/1.!.-

Director, IRIS Division 

Office of Research and Development 

National Center for Environmental Assessment 

This memorandum authorizes the posting of EPA-HQ-ORD-2012-0830, IRIS Assessment 

Materials for Inorganic Arsenic (Cancer and Non-Cancer Effects), to Regulations.gov for public 

access. 

EPA is actively working on the IRIS assessment of inorganic arsenic (cancer and non-cancer 

effects). During 2015 and 2016 materials related to the inorganic arsenic assessment may also be 

discussed at an IRIS public science meeting or other public meetings related to the IRIS 

assessment. Detailed information on these meetings will be posted on the IRIS website before 

each meeting. This docket will be open for public comment from November 20, 2015 to 

December 31,2016. 

Submit your comments, identified by Docket ID No. EPA-HQ-ORD-2012-0830 by one of the 

following methods: 

• www.regulations.gov: Follow the on-line instructions for submitting comments. 

• Email: Docket ORD@epa.gov. 

• Fax: 202-566-9744 

• Mail: Office of Environmental Information (OEI) Docket, U.S. Environmental 

Protection Agency, Mail code 28221T, 1200 Pennsylvania Ave, NW, 

Washington, DC 20460. 

• 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 4:30p.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 for deliveries of boxed information. 

EPA's policy is that all comments received will be included in the public docket without change 

and may be made available online at http://www.regulations.gov, including any personal 

information provided, unless the 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, avoid 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. 

Should you have any questions regarding this memorandum, please contact Eric Shultz at (202) 

566-1883, or via email at schultz.eric@epa.gov.