Record Display for the EPA National Library Catalog


Main Title Application of watershed ecological risk assessment methods to watershed management /
CORP Author Environmental Protection Agency, Washington, DC. National Center for Environmental Assessment.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment,
Year Published 2008
Report Number EPA/600/R-06/037F
Stock Number PB2008-108923
OCLC Number 241302165
Subjects Watersheds--Environmental aspects--United States ; Water--Pollution--Health aspects--United States ; Environmental risk assessment--United States
Additional Subjects Risk assessments ; Ecology ; Watersheds ; Ecosystems ; Pathways ; Endpoints ; Problem formulations ; Planning ; Risk analyses ; Risk characterization ; Decision making ; Risk communication ; Risk management ; Ecological assessments ; Environmental stressors ; Ecological Risk Assessment (ERA)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600/R-06/037F c.1-2 Headquarters Library/Washington,DC 09/19/2008
ELBD ARCHIVE EPA 600-R-06-037F Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 600-R-06-037F repository copy AWBERC Library/Cincinnati,OH 10/17/2014
ERAD  EPA 600/R-06/037F Region 9 Library/San Francisco,CA 04/21/2009
NTIS  PB2008-108923 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 76 p. : charts ; 28 cm.
Watersheds are frequently used to study and manage environmental resources because hydrologic boundaries define the flow of contaminants and other stressors. It is a challenge to incorporate scientific information in watershed management and planning. Ecological assessments of watersheds are complex because watersheds typically overlap multiple jurisdictional boundaries, are subjected to multiple environmental stressors, and have multiple stakeholders with diverse environmental and socioeconomic interests. Ecological Risk Assessment (ERA) is an approach that has successfully been used to increase the use of ecological science in decision making, by evaluating the likelihood that adverse ecological effects may result from exposure to one or more stressors, yet its application to watershed assessment is limited. The purpose of this report is to provide suggestions and examples for making scientific information more relevant to the needs of watershed managers by using ERA principles to help structure ecological assessments of watersheds. This report supplements the 'Guidelines for Ecological Risk Assessment', PB98-117849, by addressing issues commonly encountered when conducting watershed ecological assessments. Suggestions and examples to follow are provided based upon lessons learned from prior watershed ERA's. This report is of potential use to ecologists, hydrologists, watershed managers, risk assessors, landscape ecologists, and other scientists and managers seeking to increase the use of environmental assessment data in decision making. Each activity and phase of the watershed ERA process is explained sequentially in this report. Guidance on how to involve stakeholders to generate environmental management goals and objectives is provided. The processes for selecting assessment endpoints, developing conceptual models, and selecting the exposure and effects pathways to be analyzed are described. Suggestions for predicting how multiple sources and stressors affect assessment endpoints are also provided; these include using multivariate analyses to compare land use with biotic measurements. In addition, the report suggests how to estimate, describe, and communicate risk and how to evaluate management alternatives.
"EPA/600/R-06/037F." "March 2008." Includes bibliographical references (p. 72-76).