Groundwater, the "invisible water," is difficult to assess, manage and govern for many reasons, mostly due to the unknown quantities of the resource. Political boundaries dividing groundwater aquifers make assessment even more challenging. This article focuses on lessons learned from the hydrologic assessment of the Transboundary San Pedro and Santa Cruz aqufiers. The authors conducted the work in two phases: (1) laying the groundwork and (2) implementation.
Sharon B. Megdal
Sharon B. Megdal
350 North Campbell Ave.
Tucson, AZ 85719
Sharon B. Megdal is Director of The University of Arizona Water Resources Research Center (WRRC), a research and Extension unit in the College of Agriculture and Life Sciences. Her work focuses on water policy and management, on which she writes and frequently speaks. She also holds the titles: Professor and Specialist, Department Soil, Water, and Environmental Science; C.W. & Modene Neely Endowed Professor; and Distinguished Outreach Professor. She serves as Director of the University of Arizona Water, Environmental and Energy Solutions Program, which is funded by the University of Arizona Technology Research Initiative Fund (TRIF).
The geographic scope of Dr. Megdal’s work ranges from local to international. Current projects include: comparative evaluation of water management, policy, and governance in growing, water-scarce regions; groundwater management and governance; groundwater recharge; and transboundary aquifer assessment. She is the lead editor of the book, Shared Borders, Shared Waters: Israeli-Palestinian and Colorado River Basin Water Challenges. She also has served as lead guest editor for multiple special issues of the journal Water. She writes a regular water policy column; current and all past columns can be found at https://wrrc.arizona.edu/columns. Dr. Megdal teaches the multi-disciplinary graduate course Water Policy in Arizona and Semi-arid Regions.
Current professional service activities include: Immediate Past President, Universities Council on Water Resources (UCOWR); Board President, International Arid Lands Consortium (IALC); and Board Member, American Water Resources Association (AWtRA). Elected to a six-year term in 2008 and 2014, Sharon represents the residents of Pima County on the Board of Directors for the Central Arizona Water Conservation District, also known as the Central Arizona Project (CAP). The board is responsible for the policies, rates and taxes associated with delivering Colorado River water to Central Arizona. Since February 2016, Sharon has served as Secretary of the CAP Board and Chair of the Central Arizona Groundwater Replenishment District and Underground Storage Committee. Dr. Megdal has served on numerous Arizona boards and commissions, including the Arizona Corporation Commission, the State Transportation Board and the Arizona Medical Board. She holds a Ph.D. degree in Economics from Princeton University and an A. B. degree in Economics from Douglass College of Rutgers University.
Email address: firstname.lastname@example.org
Mailing address: Water Resources Research Center, The University of Arizona, 350 N. Campbell Ave., Tucson, AZ 85719 USA Phone: 1-520-621-9591; Fax: 1-520-792-8518; WhatsApp: 1-520-245-9020
WRRC web site: wrrc.arizona.edu; Director’s web page: http://wrrc.arizona.edu/sharon-megdal
Groundwater governance and management practices vary considerably across the United States. To better understand groundwater governance strategies and practices connected to water quality in the United States, a team from the University of Arizona Water Resources Research Center designed and launched a nationwide survey in 2016. The goal of the project was to identify on-the-ground practices of groundwater governance that may help to improve and enhance management of the nation’s water supplies, particularly within the realm of groundwater quality.
Groundwater is increasingly important for meeting water demand across the United States (U.S.). Forward thinking governance and effective management are necessary for its sustainable use. In the U.S., state governments are primarily responsible for groundwater governance (i.e., making laws, policies, and regulations) and management (i.e., implementation of laws, policies, and regulations). This decentralized system results in diverse strategies and practices. We surveyed a water quality professional from each state to better understand commonalities and differences across states.
Many consider gravity-flow irrigation inefficient and deride its use. Yet, there are cases where gravity-flow irrigation can play an important role in highly productive and profitable agriculture. This perspective article reviews the literature on the profitability and efficiency of gravity systems. It then reviews the history of water management in Yuma, Arizona, which is one of the most productive agricultural areas in the United States.
Membership on the Transboundary Aquifer Assessment Program (TAAP) team continues to be gratifying. The late 2016 publication of the Binational Study of the Transboundary San Pedro Aquifer by the International Boundary and Water Commission marked a milestone. This study is noteworthy in that it is a first-ever binationally prepared, fully bilingual aquifer assessment along the border shared by the United States and Mexico, and because it was subject to peer review on both sides of the border.
The book Transboundary Groundwater Resources: Sustainable Management and Conflict Resolution (Fried and Ganoulis 2016) builds on an experimental training program. The program consisted of two workshops held in 2006 and 2010 in collaboration with the International Hydrological Programme of United Nations Educational, Scientific and Cultural Organization (UNESCO).