Educational Insight on Important Water Issues
Newsletters
January 15, 2021
Weekly Wave: Reflections: A Reexamination of Past Water Wishes
Prior to beginning my series of Reflections essays, I published a column in each issue of the now-discontinued WRRC Arizona Water Resource...
January 08, 2021
Weekly Wave: Long-Time WRRC Assistant Director Susanna Eden Retires
December 17, 2020 was a bittersweet afternoon at the WRRC, as we “cyber-gathered” to bid farewell to one of our own, Assistant Director Susanna Eden. Dr. Eden...
December 18, 2020
Weekly Wave: End of 2020 Reflections
It is that season when we look back at the year about to end and ahead toward the coming year. What does one say at the end of this COVID-19 pandemic year?...
December 11, 2020
Weekly Wave: A Picture is Worth a Thousand Words
This month marks the end of WRRC Director Sharon Megdal’s service as a board member of the Central Arizona Water Conservation District, better known as the...
December 04, 2020
WRRC Weekly Wave: Bridging the Colorado River Basin and Israel
In November, WRRC Director Sharon B. Megdal had two opportunities to bridge the Colorado River Basin and Israel through invited lectures. On November 20,...
November 20, 2020
Weekly Wave: CAP Keeps Water Flowing and Employees Safe During COVID-19
Last Friday, Ted Cooke, General Manager at the Central Arizona Project (CAP), presented “How Arizona’s Largest Water Utility Responded to the Coronavirus...
Articles, Reports and Other
Journal Articles
July 01, 2019
Tucson Leads the Way
In collaboration with city, county, and academic institutions can open new opportunities to secure new water resources. Green infrastructure is critical to reducing the demand on potable supplies, explain authors Susanna Eden at the University of Arizona Water Resources Research Center and at the Pima County Regional Flood Control District.
Water harvesting has been used in the Tucson, Arizona region since prehistoric times and is now in resurgence. Within the past 30 years, Tucson has become a leader in desert rainwater and stormwater capture to build resilience and address growing concerns...
Books/Book Chapters
January 24, 2019
Groundwater governance in the United States: A mosaic of approaches
Groundwater is an important water supply for meeting municipal, industrial, and agricultural water demands and for supporting riparian and other ecological systems in the United States (U.S.). Effective groundwater governance is therefore crucial to the wise use of this largely non-renewable resource (recharge rates are slower than extraction rates). While minimum, federally-established drinking-water quality and water-discharge regulations do exist, the framework of the laws and regulations governing groundwater use in this country is highly decentralized. Each state determines its own...
Journal Articles
December 06, 2018
Influence of grey water on physical and mechanical properties of mortar and concrete mixes
This project aims to evaluate the potential of reused grey water in concrete and mortar in order to preserve fresh water for drinking purposes. Using both Treated Grey Water and Raw Grey Water (TGW and RGW, respectively) led to a significant increase in the initial setting time and a decrease in the concrete slump value. In addition, there was no effect on mortar soundness properties. The mortar and concrete compressive strength results obtained at 7 days moist curing time showed a significant increase. Mortar and concrete mixes using TGW cast at...
Journal Articles
October 01, 2018
Decentralized Groundwater Governance and Water Nexus Implications in the United States
The interconnectivities of groundwater to food, energy, and the climate are addressed to various degrees at the state level. Groundwater governance in the United States is decentralized, resulting in considerable variations in state practices. This article, published in Jurimetrics and written by Sharon B. Megdal and Jacob Petersen-Perlman, reports on two state-level surveys and three regional case studies conducted to better understand groundwater governance strategies and practices. The article also relates the results of these research efforts to food, energy, and climate. The...
Journal Articles
September 14, 2018
Findings and lessons learned from the assessment of the Mexico-United States transboundary San Pedro and Santa Cruz aquifers:
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. The "laying the groundwork" phase consisted of binational meetings with stakeholders and key actors (agencies and individuals), and the...
Reports
June 06, 2018
State-level Groundwater Governance and Management in the U.S.: Summary of Survey Results of Groundwater Quality Strategies and Practices
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. A state water professional was recruited in...
Information Sources
March 01, 2008
Well Owners' Guide to Ground Water Resources in Yavapai County
An individual in an industrialized urban society may use from one million to five million gallons of water during their lifetime. If the share of industrial, agricultural, and recreational usage is counted, the total amount of water may exceed ten million gallons per capita. Water resources are those sources of water that meet the need of the individual and society, and the value of that resource depends on demand and availability. Our arid climate, coupled with increasing demands on water supply and the over—allocation of surface water resources, forces much of Yavapai County to rely on...
December 01, 2007
Layperson's Guide to Arizona Water
As part of its commitment to serve the water education needs of Arizona citizens, the Water Resources Research Center teamed up with the Water Education Foundation to produce the Layperson’s Guide to Arizona Water. The publication meets a longstanding need: it offers in a single, reader-friendly source information Arizona citizens need to be well informed about state water issues. Few would doubt the need for a layperson’s guide or primer describing the ins and outs of Arizona water. Arizona is a rapidly growing state attracting people from many different areas who need to be...
June 30, 2007
Arizona Conserve Water Educators' Guide
Arizona Conserve Water is a publication dedicated to the premise that it is never too early to learn to conserve water. The K-12 educators' guide is a tool to help Arizona teachers develop among their students a knowledge and respect for water in their semi-arid home state.
The guide is divided into four sections. Part I provides students with a brief overview of Arizona geography, water history, water management and conservation. Students become more actively involved with Part II, a collection of 15 lesson plans presenting creative, hands-on activities to teach students about water...
October 15, 2005
Rain Barrel Water Harvesting Guide
The southwestern United States and northwestern Mexico have generally dry climates and rapidly growing populations. Both Nogales, Arizona, and Nogales, Sonora, have limited water resources and must rely on the drought-prone Santa Cruz River for 50 percent or more of their water supply.
A 6-page "how-to" guide on the basic principles of rain barrel water harvesting and information about installing your own system. This guide was prepared for the Nogales Rainwater Harvesting Open House.
November 30, 2004
Arizona Know Your Water
Our day-to-day existence depends on having access to fresh water. Arizonans use about 130 gallons of potable water per person per day. In addition, each day in the U.S. about 1400 gallons of fresh water are needed to grow one person’s food supply, produce electric power, and support industrial production. The environment, the water cycle, and human activities determine water quality. Consumers need to be aware of the water sources in Arizona, be familiar with the quality of the water they are using and be able to make informed decisions about their home water treatment options.
Arizona...
July 15, 1996
Field Manual For Water Quality Sampling
This field manual is intended to serve as a field reference guide for the collection of water quality samples from surface water and ground water. More detailed information can be found in reference materials from the Arizona Department of Environmental Quality and other sources. Separate training should be provided prior to field water quality sampling.
The overriding objective of this manual is to provide consistent field sampling protocols for the numerous agencies and individuals who require water quality information. However, it is not intended to replace any sampling plan. The Spanish-...