[Federal Register Volume 76, Number 102 (Thursday, May 26, 2011)]
[Page 30705]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-13106]




Problem Formulation for Human Health Risk Assessments of 
Pathogens in Land-Applied Biosolids

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of availability.


SUMMARY: EPA is announcing the availability of a final report titled, 
``Problem Formulation for Human Health Risk Assessments of Pathogens in 
Land-Applied Biosolids'' EPA/600/R-08/035F, which was prepared by the 
National Center for Environmental Assessment (NCEA) within EPA's Office 
of Research and Development (ORD).

DATES: This document will be available on or about May 26, 2011.

ADDRESSES: The document will be available electronically through the 
NCEA Web site at http://www.epa.gov/ncea. A limited number of paper 
copies will be available from the EPA's National Service Center for 
Environmental Publications (NSCEP), P.O. Box 42419, Cincinnati, OH 
45242; telephone: 1-800-490-9198; facsimile: 301-604-3408; e-mail: 
lmit.com">[email protected]lmit.com. Please provide your name, your mailing address, the 
title and the EPA number of the requested publication.

FOR FURTHER INFORMATION CONTACT: The Information Management Team, 
National Center for Environmental Assessment (8601P), U.S. 
Environmental Protection Agency, 1200 Pennsylvania Avenue, NW., 
Washington, DC 20460. Telephone: 703-347-8561; fax: 703-347-8691; e-
mail: [email protected].

SUPPLEMENTARY INFORMATION: This document may be useful to Federal, 
State or local risk assessors and managers, contractors, or other 
parties interested in conducting microbial risk assessments on land-
applied biosolids. In particular, this document provides concepts and 
planning considerations for conducting human health risk assessments on 
potential pathogens in land-applied biosolids. The document does not 
represent guidance, nor does it constitute a risk assessment for 
pathogens in land-applied biosolids. As one component of U.S. EPA's 
action plan for its biosolids program (http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=231964), this document summarizes the existing 
literature; defines critical pathogen stressors; develops conceptual 
models linking the most likely stressors, pathways and health responses 
of concern; evaluates the overall quality and utility of available risk 
assessment data; highlights existing tools and methodologies; and 
provides an outline of an Analysis Plan that identifies gaps in 
knowledge and research and methods needed to provide more 
scientifically defensible assessments relevant to U.S. EPA's decision 
needs. The document has been updated and revised by EPA based on 
comments received from the public and an independent, external panel of 
scientific experts (73 FR 54400).

    Dated: May 18, 2011.
Darrell A. Winner,
Acting Director, National Center for Environmental Assessment.
[FR Doc. 2011-13106 Filed 5-25-11; 8:45 am]