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Authors, Contributors, and Reviewers

CADDIS is produced by the U.S. EPA's Causal Analysis Team. Authorship details for different sections of the Web site are provided below.

The Causal Analysis Team

Team Leads

Susan B. Norton, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Current Team Members

Robert Cantilli, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC
David Farrar, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Michael Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Jeff Hollister, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, RI
Evan Hornig, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC
Maureen Johnson, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Kathryn Kazior, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Michael Kravitz, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Jan Kurtz, U.S. EPA, Office of Research Development, National Health and Ecological Effects Research Laboratory, Pensacola, FL
Suzanne M. Marcy, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Matthew Morrison, U.S. EPA, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, OH
John Paul, U.S. EPA, Office of Research Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC
Amina Pollard, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Victor Serveiss, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Robert Spehar, U.S. EPA, Office of Research Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
William Swietlik, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC
Debra Taylor, U.S. EPA, Office of Research Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Joe Williams, U.S. EPA, Office of Research and Development, National Risk Management Research Laboratory, Ada, OK
Lester Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Rick Ziegler, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Past Members

Walter Berry
Maeve Foley
Scott Freeman
Phil Kaufman
Chuck Lane
Phil Larsen
Chris Nietch
Doug Norton
Leela Rao
Keith Sappington
Treda Smith
Sharon Taylor

Contracting Support

Contracting support for CADDIS has been provided through contracts 68-C-04-004, 68-C-02-061 and GS-00F-0007L, and GS-10F-0036K;

Work Assignment Managers: Susan Cormier, Michael Griffith, Susan B. Norton, Vic Serveiss, Rick Ziegler, Kate Schofield, Patricia Shaw-Allen, and Lester Yuan

TN and Associates, Oak Ridge, TN: David Eskew, Don Catanzaro, Art Stewart, Kirby Timm, Jean Mayo, Eric Lingerfelt and Jennifer Hendricks
TetraTech Inc., Fairfax, VA and Owings Mills, MD: Jeffrey White, Vladi Royzman, Lynn Fan, Mike Paul, Liejun Wu, Qiang Pei, John Zastrow, Jocelyn Li, David Du, Penny Dimler, and Esther Peters
Neptune and Co., Los Alamos, NM: Paul Black, Tom Stockton, and Mark Fitzgerald
Versar, Inc., Springfield, VA: David Bottimore and Nica Mostaghim
Eastern Research Group (ERG), Lexington, MA: Jan Connery and Laurie Waite

External Reviewers

2005 Review Panel (Step-by-Step Guide, Fundamentals of Data Analysis)

Mark T. Southerland, Chair, Versar, ESM Operations, Columbia, MD
Daren M. Carlisle, U.S. Geological Survey, Reston, VA
Marty D. Matlock, Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR
Robert W. Plotnikoff, Washington Department of Ecology, Olympia, WA
Barbara S. Washburn, California EPA, Office of Environmental Health Hazard Assessment, Sacramento, CA
Two anonymous reviewers

2007 Review Panel (Candidate Causes, Analyzing Data, Databases, Predicting Environmental Conditions from Biological Observations: Technical Details and Programs)

Bruce Hope, Chair, Oregon Department of Environmental Quality, Portland, OR
Marty D. Matlock, Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR
Chuck Hawkins, Western Center for Monitoring and Assessment of Freshwater Ecosystems, College of Natural Resources, Utah State University, Logan, UT
Robert Miltner, Ohio Environmental Protection Agency, Columbus, OH
Lucinda Johnson, Natural Resources Research Institute, University of Minnesota, Duluth, MN

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Web Design and Implementation

Lead
Susan B. Norton, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Contributors
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Maureen Johnson, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Kathryn Kazior, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Lester Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Rick Ziegler, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

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Lead Editor

Glenn W. Suter, II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

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Step-by-Step Guide

Authors

Susan B. Norton, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Contributors

Lester Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Leela Rao, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Acknowledgements

Donna Reed-Judkins, Maeve Foley, Chuck Lane, Scott Freeman, Doug Norton, Treda Smith, Maureen Johnson

Reviewers

Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Amina Pollard, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Robert Spehar, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Christine Dibble, U.S. EPA, Office of Public Affairs, Washington, DC
Jeff Morin, U.S. EPA, Office of Public Affairs, Washington, DC

Writing Workshop on Case Studies Identifying the Causes of Biological Impairment in Streams. Davis, WV, May 15-20, 2005

Workshop leads:

Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Jan Kurtz, National Health and Environmental Effects Research Laboratory, Gulf Breeze, FL

Participants:

Christopher Bellucci, Charlie Menzie, Danelle Haake, Tom Wilton, Thomas Isenhart, Susanne Meidel, Jeff Varricchione, Kay Whittington, William Stephens, Matt Hicks, Jerry Diamond, Chad Wiseman, Mike LeMoine, Jeroen Gerritsen, Ben Lowman, and Jeff Bailey

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Common Candidate Causes

Section leads:

Suzanne M. Marcy, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Section editor:

Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Metals

Authors
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Reviewers
Christine Russom, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Michael Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Luis Cruz, U.S. EPA, Office of Research and Development, Office of Water, Office of Science and Technology, Washington, DC

Sediments

Authors
Robert Spehar, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Susan Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Debra Taylor, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN

Reviewers
Jan Kurtz, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Gulf Breeze, FL
Greg Pond, U.S. EPA Region 3, Wheeling, WV
Rick Ziegler, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Nutrients

Authors
Jan Kurtz, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Gulf Breeze, FL
Michael B. Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Matthew A. Morrison, U.S. EPA, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, OH
C. Evan Hornig, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC

Reviewers
Rick Greene, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, RI
Amy Parker, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC
Susan B. Norton, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Dissolved Oxygen

Authors
Suzanne M. Marcy, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Glenn Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Reviewers
C. Evan Hornig, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC
Phil Larsen, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Laboratory, Corvallis, OR
Amy Parker, U.S. EPA, Office of Water, Office of Science and Technology, Washington, DC

Temperature

Authors
Keith Sappington, U.S. EPA, Office of Pesticide Programs, Washington, DC
Susan B. Norton, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Reviewers
Dru Keenan, U.S. EPA, Region 10, Seattle, WA
Lester Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Amina Pollard, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Ionic Strength

Authors
Rick Ziegler, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington DC
Glenn Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
B.J. Kefford, RMIT University, Bundoora, Victoria, Australia
Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Greg Pond, U.S. EPA, Office of Research and Development, Region 3, Wheeling, WV

Reviewers
David Mount, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Teresa Norberg-King, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Keith Sappington, U.S. EPA, Office of Pesticide Programs, Washington, DC

Flow Alteration

Author
Rick Ziegler, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Reviewers
Debra Taylor, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Alison Roy, U.S. EPA, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, OH
Tom Johnson, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Glenn F. Cada, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN
Henriette I. Jager, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN

Unspecified Toxic Chemicals

Authors
Suzanne M. Marcy, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Glenn Suter II, National Center for Environmental Assessment, Cincinnati, OH

Reviewers
Robert Burgess, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, RI
Robert Spehar, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Chuck Stephan, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN
Michael Kravitz, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Keith Sappington, U.S. EPA, Office of Pesticide Programs, Washington, DC

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Interactive Conceptual Models

Phosphorus

Author
Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Reviewers
Suzanne M. Marcy, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Paul Wagner, U.S. EPA, Office of Research and Development, National Exposure Research Laboratory, Research Triangle Park, NC
John Lehrter, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Gulf Breeze, FL
Candice Bauer, U.S. EPA Region 5, Chicago, IL

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Analyzing Data

Section lead: Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Section editor: Glenn Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Section Reviewers

Karen Blocksom, U.S. EPA, Office of Research and Development, National Exposure Research Laboratory, Cincinnati, OH
Susan Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Jeff Hollister, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, RI
John Van Sickle, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Corvallis, OR

Analytical Methods

Section editor: Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Authors

Scatter Plots

Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Correlation

Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Box Plots

Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Conditional Probability Analysis

John F. Paul, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC

Regression Analysis

Lester L. Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Predicting Environmental Conditions from Biological Observations

Lester L. Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Quantile Regression

Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Lester L. Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Classification and Regression Trees

Michael Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Species Sensitivity Distributions

Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

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Fundamentals of Data Analysis

Section editor: Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Section Authors

Glenn W. Suter II, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Susan B. Norton, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Michael Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Section Reviewers

Karen Blocksom, U.S. EPA, Office of Research and Development, National Exposure Research Laboratory, Cincinnati, OH
Jeff Hollister, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, RI
John Van Sickle, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Corvallis, OR
Amina Pollard, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Robert Spehar, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Duluth, MN

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Analytical Tools

Section lead:

Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Species Sensitivity Distribution Generator

Author
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Reviewers
Karen Blocksom, U.S. EPA, Office of Research and Development, National Exposure Research Laboratory, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Jeff Hollister, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, RI

CADStat

Authors
Michael Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Lester L. Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Reviewers
Karen Blocksom, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, National Exposure Research Laboratory, Cincinnati, OH
Susan M. Cormier, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Jeff Hollister, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, National Health and Environmental Effects Research Laboratory, Narragansett, RI

Predicting Environmental Conditions from Biological Observations: Technical Details and Programs

Author
Lester L. Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Reviewers
Rick Ziegler, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Phil Larsen, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Corvallis, OR
John Paul, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC

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Databases

Conceptual Model Library

Editor
Kate Schofield, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC

Authors
For authors, see the individual conceptual model diagrams and narratives

Reviewers
Conceptual model diagrams and narratives were reviewed along with the candidate cause modules

Metals Chronic Concentration-Response Gallery

Author
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Metals Species Sensitivity Distribution Gallery

Author
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH

Field Stressor-Response Gallery

Authors
Michael Griffith, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
Lester L. Yuan, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Washington, DC
Patricia Shaw-Allen, U.S. EPA, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, OH
John Paul, U.S. EPA, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Research Triangle Park, NC

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