Executive Committee

Liz Caldwell

Reymundo Chapa

Interim Director
(970) 491-7934

As Interim Director of CEMML, Reymundo “Tony” Chapa guides development and implementation of the center’s priorities and its collaborations with federal, state, university, and other partners. He facilitates the provision of research, services, and education by CEMML, and seeks to maintain and increase the center’s public service. Chapa joined the Center for the Environmental Management of Military Lands in August 2018 as Associate Director for Cultural Resources. Prior to that, Chapa’s most recently served as Program Manager, Cultural Resources Management, with the Air National Guard at Joint Base Andrews, Maryland. He is a member of the Department of Defense’s Historic Preparation Working Group and the Air Force Cultural Resources Panel Executive Committee, and chairs the Air National Guard’s Tribal Consultation Working Group. Tony is an Army veteran and holds graduate degrees in both anthropology and political science. He also served as an aide to the Texas House of Representatives. Tony’s diverse and considerable expertise is an excellent complement to our existing multi-disciplinary teams and to our full suite of programs.

Picture of Calvin Bagley

Calvin Bagley

Associate Director
(970) 491-3324

Cal Bagley is a range ecologist, with experience in natural resources management, GIS, environmental planning, and NEPA. As Associate Director he manages a wide variety of Army, Air Force, US Forest Service, SERDP and DoD contracts. He manages the GIS team, providing GIS support, data collection and development, analysis and map production and the Environmental Planning Team develops Integrated Natural Resources Management Plans (INRMPs), Environmental Assessments (EAs) and Environmental Impact Statements (EISs). Bagley addresses applied research on wind and water erosion, training impacts on vegetation recovery, and GIS/remote sensing applications for natural resources inventory and monitoring of public lands. Bagley is an advisor and project leader for CEMML graduate students in the Warner College of Natural Resources.

Liz Caldwell

Liz Caldwell, Ph.D.

Associate Director
(970) 491-8406

Liz Caldwell successfully served as the Interim Director while recruiting for a permanent director. As Associate Director Compliance with CEMML, she manages the environmental compliance team on-campus as well as a variety of Army, Air Force, ESTCP contracts and CEMML’s on-site personnel task orders for environmental compliance specialists and field technicians staffed at various military installations. Areas of technical expertise include: environmental toxicology, radiation ecology, human health and ecological risk assessment, NEPA, environmental compliance, pollution prevention; and stormwater management planning. Caldwell is engaged in applied research investigating innovative solutions to potential degradation and/or reuse of deicing fluid and sludge obtained from oil water separators.


Picture of Jim Zeidler

Jim Zeidler, Ph.D.

Emeritus Senior Research Scientist / Scholar


Jim Zeidler is a Research Scientist and registered professional archaeologist. As former Associate Director for Cultural Resources, he served as CEMML’s chief cultural resources specialist and also held an Adjunct Assistant Professor position in CSU’s Department of Anthropology. His responsibilities included the execution of cultural resources management (CRM) planning and technical support efforts for the Army and other DoD services. He also managed CEMML’s on-site personnel contracts for cultural resources specialists and field technicians staffed at various military installations. While at CEMML, Zeidler was also actively involved in applied scientific research in the areas of archaeological resource management, predictive modeling, and geoarchaeology.

Dr. Zeidler retired from CEMML as Emeritus Research Scientist on December 31, 2017, and since then has turned his attention back to South American archaeology and his on-going research in coastal Ecuador. He is currently a Research Fellow in residence for the 2018-2019 academic year at Harvard University’s Dumbarton Oaks Research Library and Collection in Washington, D.C., where he is preparing a book on his archaeological research in Ecuador’s northern Manabí province.