Field Trip - Northern Guam Lens Aquifer Jun 2014 | Page 32

Authors
John W. Jenson, PhD
Senior Hydrogeologist & Professor of Environmental Geology
Water & Environmental Research Institute of the Western Pacific
University of Guam, Mangilao, GU 96923
[e-mail]
Ph.D. Geology, Oregon State University
M.A. Applied Economics, University of Michigan
B.S. Economics, US Air Force Academy
Dr. Jenson has studied the Northern Guam Lens Aquifer for some two decades since joining the WERI faculty in 1993.
His research encompasses both applied and theoretical groundwater hydrology and related environmental science. Recent
work on Guam includes assessment of newly-drilled and rehabilitated wells, rehabilitation of long-out-of-service wells, and
reconnaissance of promising sites for new production wells. Recent applied work also includes evaluation of the stormwater
drainage potential of a large sinkhole on Andersen Air Force Base, in collaboration with Dr. Taboroši; and an updated study
of spatial patterns and temporal trends in the salinity of water from Guam’s production wells. He is currently supervising the
construction of a new aquifer database and an update of the map of the aquifer basement. Dr. Jenson’s basic scientific research
activities include development of the Carbonate Island Karst Model and reconstruction of past wet-dry cycles and sea levels on
Guam from field geology and geochemical clues in cave deposits on northern Guam. Dr. Jenson also served a 30-year career as
a US Air Force officer, with tours in strategic missile operations and staff duty at HQ Strategic Air Command, HQ US Air Force,
HQ US Forces-Japan, and HQ 13th Air Force.

Danko Taboroši, PhD
Director
Island Research & Education Initiative, Palikir, Pohnpei, FM 96941
[e-mail]

Acknowledgments
Special thanks to Mr. Carlos Taitano and
his colleagues at the University of Guam’s
Professional and International Programs
Office for logistic and administrative support
in preparing the field trip and this guide.
Thanks also to Mr. Nathan Habana at WERI
for assistance with maps and photography,
and to Mr. Alfred Santos at the Department
of Public Works Quarry in Dededo for
graciously assisting in preparation and
hosting visits to the quarry.

Ph.D. Earth Science, Hokkaido University
M.S. Environmental Science, University of Guam
B.S. Marine Biology, College of Charleston
B.A. Geology, College of Charleston
Dr. Taboroši’s research focuses on carbonate geology, karst processes, and coastal and island geomorphology.
His Masters research was a landmark inventory of the karst features of Guam, which included the first thorough
maps of the island’s sinkholes and caves. He has remained active in Guam water resources research. His doctorate
at Hokkaido University took him into detailed interdisciplinary studies of calcium carbonate precipitation, cave
microclimates, limestone coastal processes. He has taught sedimentology, stratigraphy, and oceanography at
the American University of Beirut in Lebanon, and a professional development course on the Northern Guam
Lens Aqu