### 57739 Federal Register / Vol. 76, No. 180 / Friday, September 16, 2011 / Notices

**ENVIRONMENTAL PROTECTION AGENCY** 

**[FRL–9466–4; Docket ID No. EPA–HQ–ORD– 2011–0390]** 

**Draft Toxicological Review of 1,4- Dioxane: In Support of Summary**  **Information on the Integrated Risk Information System (IRIS)** 

**AGENCY :**  Environmental Protection Agency (EPA).

**ACTION :**  Notice of Public Comment Period; extension.

**SUMMARY :**  EPA announced a 60-day public comment period on August 31, 2011 (76 FR 54225) for the external review draft human health assessment titled, ‘‘Toxicological Review of 1,4- Dioxane: In Support of Summary Information on the Integrated Risk Information System (IRIS)’’ (EPA/635/ R–11/003). New inhalation studies regarding the toxicity of 1,4-dioxane are now included in the 1,4-dioxane assessment. EPA is extending the public comment period because of a delay in the release of the Toxicological Review to the public. The draft assessment was prepared by the National Center for Environmental Assessment (NCEA) within the EPA Office of Research and Development (ORD). EPA is releasing this draft assessment solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. This draft assessment has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency policy or determination. After public review and comment, an EPA contractor will convene an expert panel for independent external peer review of this draft assessment. The public comment period and external peer review meeting are separate processes that provide opportunities for all interested parties to comment on the assessment. The external peer review meeting will be scheduled at a later date and announced in the Federal Register . Public comments submitted during the public comment period will be provided to the external peer reviewers before the panel meeting and considered by EPA in the disposition of public comments. Public comments received after the public comment period closes will not be submitted to the external peer reviewers and will only be considered by EPA if time permits.

**DATES :**  The public comment period will be extended to end November 15, 2011. Comments should be in writing and must be received by EPA by November
15, 2011. **ADDRESSES :**  The draft ‘‘Toxicological Review of 1,4-Dioxane: 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 (Address: Information Management Team, National Center for Environmental Assessment, (Mail Code: 8601P), U.S. Environmental Protection Agency, 1200 Pennsylvania Avenue, NW., Washington, DC 20460; telephone: 703–347–8561; facsimile: 703–347– 8691). If you request a paper copy, please provide your name, mailing address, and the draft assessment title.

Comments may be submitted electronically via http:// www.regulations.gov, by e-mail, by mail, by facsimile, or by hand delivery/
courier. Please follow the detailed instructions provided in the

**SUPPLEMENTARY INFORMATION** section of the previous notice (76 FR 54225).

Additional Information: For information on the docket, http:// www.regulations.gov, or the public comment period, please contact the
Office of Environmental Information (OEI) Docket (Mail Code: 2822T), U.S. Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460; telephone: 202–566–1752; facsimile: 202–566–1753; or e-mail: ORD.Docket@epa.gov.

For information on the draft assessment, please contact Patricia Gillespie, National Center for Environmental Assessment [Mail Code: B–243–01], U.S. Environmental Protection Agency, National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone: 919–541–1964; facsimile: 919–541–2985; or e-mail:

FRN

_ Questions@epa.gov.

Dated: September 9, 2011.

Darrell A. Winner, Acting Director, National Center for
Environmental Assessment.

[FR Doc. 2011–23818 Filed 9–15–11; 8:45 am]

**BILLING CODE 6560–50–P ENVIRONMENTAL PROTECTION**  **AGENCY**

**[ER–FRL–8999–1]**

**Environmental Impacts Statements; Notice of Availability** 

Responsible Agency: Office of Federal Activities, General Information (202)

564–1399 or http://www.epa.gov/ compliance/nepa/

. Weekly receipt of Environmental Impact

Statements Filed 09/05/2011 Through 09/09/2011
Pursuant to 40 CFR 1506.9.

Notice

Section 309(a) of the Clean Air Act requires that EPA make public its comments on EISs issued by other Federal agencies. EPA’s comment letters on EIS are available at: http:// www.epa.gov/compliance/nepa/ eisdata.html. EIS No. 20110306, Draft EIS, USFS, CA,

Johnny O’Neil Late Successional Reserve Habitat Restoration and Fuel Reduction Project, Proposal to Retain and Promote the Development of Late Successional Habitat and Reduce the Risk of Large, High Severity Wildfire, Happy Camp and Oak Knoll Ranger District, Klamath National Forest, Siskiyou County, CA, Comment Period Ends: 10/31/2011, Contact: Timothy Burnett 530–493–1767. EIS No. 20110307, Draft EIS, BLM, CO,

Colorado River Valley (formerly known as Glenwood Springs) Resource Management Plan, Implementation, Colorado River Valley Field Office, Portions of Eagle, Garfield, Mesa, Ritkin, and Routt Counties, CO, Comment Period Ends: 12/14/2011, Contact: John Russell

970–876–9025. EIS No. 20110308, Final EIS, USFS, WY,

Livestock Grazing and Vegetation Management on Five Project Area, Proposes to Continue to Authorize Livestock Grazing, Tongue, Medicine Wheel/Paintrock, and Power River Districts of the Bighorn National Forest, Johnson, Sheridan, Big Horn and Washakie Counties, WY, Review Period Ends: 10/17/2011, Contact: Laurie Walters-Clark 307–674–2627. EIS No. 20110309, Draft EIS, BLM, CO,

Kremmling Resource Management Plan, To Provide a Framework of Multiple-Use and Sustained Yield Management, in North-Central, CO, Comment Period Ends: 12/14/2011, Contact: Angela Glenn 303–239–3936. EIS No. 20110310, Final EIS, FERC, WA,

Boundary Hydroelectric Project, Application for Hydroelectric License, FERC Project No. 2144–038 and