V 
Acknowledgments 
This fifth addendum to the EPA April 2003 publication of Ambient Water Quality 
Criteria for Dissolved Oxygen, Water Clarity, and Chlorophyll a for Chesapeake Bay 
and its Tidal Tributaries (Regional Criteria Guidance) was developed and documented 
through the collaborative efforts of the members of the Chesapeake Bay Program’s 
(CBP) Criteria Assessment Protocols Workgroup and Water Quality Steering 
Committee. 
PRINCIPAL AND CONTRIBUTING AUTHORS 
The document resulted from the collaborative expertise and talents of Chesapeake 
Bay Program’s state agency, federal agency and academic institutional partners. The 
following are principal and contributing authors of this addendum: Peter Tango, U.S. 
Geological Survey/Chesapeake Bay Program Office; Jeni Keisman, University of 
Maryland Center for Environmental Science/Chesapeake Bay Program Office; 
Richard Batiuk, U.S. EPA Region III Chesapeake Bay Program Office, Mark Trice, 
Maryland Department of Natural Resources; Frederick Hoffman, Virginia Department 
of Environmental Quality; Ken Moore, Virginia Institute of Marine Science; David 
Parrish, Virginia Institute of Marine Science; Tish Robertson, Virginia Department of 
Environmental Quality; Elgin Perry, Statistics Consultant; Gary Shenk, U.S. EPA 
Region III Chesapeake Bay Program Office. 
CRITERIA ASSESSMENT PROTOCOL WORKGROUP 
Peter Tango, Chair, U.S. Geological Survey; Cheryl Atkinson, United States 
Environmental Protection Agency; Harry Augustine, Virginia Department of 
Environmental Quality; Mark Barath, United States Environmental Protection 
Agency; Tom Barron, Pennsylvania Department of Environmental Protection; Richard 
Batiuk, United States Environmental Protection Agency; Stephen Cioccia, Virginia 
Department of Environmental Quality; Elleanor Daub, Virginia Department of 
Environmental Quality; Thomas Gardner, United States Environmental Protection 
Agency; Sherm Garrison, Maryland Department of Natural Resources; Darryl Glover, 
Virginia Department of Environmental Quality; John Hill, Maryland Department of 
the Environment; Rick Hoffman, Virginia Department of Environmental Quality; 
Larry Merrill, United States Environmental Protection Agency; Bruce Michael, 
Maryland Department of Natural Resources; Ken Moore, Virginia Institute of Marine 
Science; Shah Nawaz, District Department of the Environment; Roland Owens, 
Virginia Department of Environmental Quality; Jennifer Palmore, Virginia 
Department of Environmental Quality; Tom Parham, Maryland Department of Natural 
Acknowledgments 
