Many regions across the globe face what are called wicked water problems, which are complex challenges that are too big for readily identifiable and/or “standard” solutions. The reasons for this are many and can relate to underlying societal or political issues and differing viewpoints as to the causes and/or potential pathways to mitigating the challenges. It is often stated that the obstacles to addressing wicked water problems may be related to public acceptance rather than technological or economic factors. Identifying and implementing pathways to solving big water challenges often r
Brown Bag Seminar/Webinar Series
Bring your lunch and join us for a range of presentations on water-related topics of interest.
Access to the WRRC’s Brown Bag series now routinely includes offsite listeners through live webcasts via Zoom.
The slide presentations of most seminars are also available for viewing on the website.
Get updates on upcoming Brown Bag Seminars
Looking Ahead
Feb 16
Reaching Safe-Yield in the Phoenix AMA
Jessica Fox, Water Policy Advisor, AMWUA
Mar 11
Community Service and Environmental Justice as Essential Best Practices for the Clean Water Utility of the Future
Andrew Kricun, Managing Director, Moonshot Missions; Senior Fellow, US Water Alliance
Mar 31
The Internet of Water: Partnerships for Progress—Modernizing Water Data to Meet 21st Century Needs
Peter Colohan, Executive Director, Internet of Water, Nicholas Institute for Environmental Policy Solutions, Duke University
Previous Brown Bag Seminars/Webinars


A corrosive-water debacle in Tucson preceded the lead contamination issues in Flint, MI by over two decades. In 1992, Tucson Water began delivery of Colorado River water from the Central Arizona Project (CAP). Putting treated CAP water into the existing groundwater distribution system caused a devastating corrosion problem that resulted in broken pipes and rusty water flowing from customer taps.

Presentations: Monitoring Tamarix defoliation and mortality from D. carinulata attacks using satellite imagery in Grand Canyon National Park, Arizona, USA and Isotopes, geochemistry, citizen science and local partnerships as tools to build upon a fractured understanding of the hydrology of the Patagonia Mountains
This Brown Bag will feature presentations by students who received research grants in 2019 through the WRRC from the Water Resources Research Act, Section 104(b) grant program.

Aedes aegypti is an invasive mosquito that has become established throughout the urban landscapes in Arizona and Sonora, Mexico. A native of the tropics, the urban landscape facilitates its survival in the arid desert region. We conducted field collections and analyzed mosquito surveillance data to better understand the primary anthropogenic drivers of its abundance in southern Arizona and northern Mexico.

Over the past few years, the UA Center for Climate Adaptation Science and Solutions has hosted a series of events aimed at broadening the conversation about managing the Colorado River. These included an assessment of interdisciplinary science needs, recognizing the complexity of river management issues; a conference soliciting input from water managers on the science agenda developed in the first event; and a conference organized around building relationships among entities and individuals with different perspectives on river management priorities.

In this webinar, Central Arizona Project (CAP) will share updates and insights from planning and policy initiatives with long-range implications. These include evaluations of future supply and demand conditions, recovery of water stored by the Arizona Water Banking Authority, CAGRD operations, Colorado River modeling, and CAP’s climate adaptation planning.

Over the past 20 years, the Tucson Active Management Area has experienced fluctuations in aquifer storage. These changes are a result of recharging imported water and changing groundwater pumping regimes. The USGS uses microgravity to directly measure storage changes in space and time, while Tucson Water measures depth to water in its measurable production wells in an annual round-up. By examining the data from both agencies, it is possible to characterize changes in the regional aquifer and monitor interesting trends in specific geographic areas.

This second webinar in the “Get Ready” series will focus on committees under the Governor’s Water Augmentation, Innovation, and Conservation Council. Philip Richards, Chair of the Desalination Committee, will discuss why desalination is being used as a possible solution for Arizona’s current water challenges and how it can help meet future water needs. In addition, committee Chair Wade Noble and Co-Chair Timothy Thomure will provide updates from the Long-Term Water Augmentation and Post-2025 AMAs Committees.

Offering perspectives on the water management challenges that Arizona faced in 1980 and the strategies and framework that were set in place with the passage of the Groundwater Management Act. How has the framework withstood the test of time? What lessons can we take with us to guide us in shaping the policy and strategies for the 5th Management Plans and for the Active Management Areas beyond 2025?