Water Resources - IMPACT - September 2017 - 5

PRESIDENT'S MESSAGE

Managing the Impacts of Water
Scarcity on Aquifer Systems
GROUNDWATER REPRESENTS
ABOUT 97.5% of Earth's liquid
freshwater. Much groundwater
occurs in aquifers, which develop
from Earth's water cycle, as a
function of the rain that ultimately
percolates through the soil and
accumulates underground.
Groundwater availability is
Rafael E. Frias, III
paramount for water supply.
President, AWRA
president@awra.org Unfortunately, not all aquifer systems
are easily accessible or equally
distributed around the world.. This inequity in availability results
in water scarcity, which is exacerbated by competing demands and
groundwater overuse from population and development growth.
In addition, climate variability further impacts water scarcity by
reducing water resource availability. As a result, strategies should be
developed to effectively manage aquifer systems in order to increase
groundwater availability for water supply and to sustain life.
Aquifer recharge is a proven approach for managing aquifer
systems that are impacted by overdrafting or water quality
deterioration from contamination or salt water intrusion. Aquifer
recharge may be accomplished through the use of wells (e.g.
recharge wells and aquifer storage and recovery) or percolation
basins, strategically located to promote infiltration and maximize
recharge benefits. Aquifer recharge strategies may be implemented
for the following purposes:
* Abatement of saltwater intrusion to avoid contamination of fresh
groundwater with saltwater
* Increased groundwater availability and supply
* Localized water quality improvements for impaired
groundwater systems
* Elimination of outfalls that discharge nutrient-laden effluent into
surface waters (e.g. ocean outfalls) to protect water quality and
aquatic habitats
* Limit land subsidence resulting from the overdrafting of
aquifer systems
* Minimize the impacts of sea-level rise related to land subsidence
(increased flooding) and saltwater intrusion (increased expansion
of the salt water front)
Effective management of aquifer recharge revolves around
fully understanding the characteristics of the aquifer system (e.g.
water quality and hydrogeologic parameters) that will serve as the
control volume for recharge. Such understanding allows for the
development of recharge schemes tailored to meet or exceed these
control volume characteristics.
To manage the impacts of water scarcity on aquifer systems,
aquifer recharge must consider the use of water supply sources that

are climate independent and not limited by geographic location,
such as reclaimed water. A plethora of advanced water treatment
technologies are currently available to effectively treat the effluent
of wastewater treatment facilities for reuse in groundwater recharge
or other intended reuse purposes, allowing for the transformation
of what normally would be considered a waste into a resource. Such
strategy promotes the diversification of water supply sources and
enhances the resilience of water supply systems.
Notable examples of managed aquifer recharge schemes include
Orange County Water District's Groundwater Replenishment
System in Orange County, California; Western Australia Water
Corporation's Groundwater Replenishment Scheme in Perth,
Australia; and the upcoming Sustainable Water Initiative for
Tomorrow (SWIFT) by Hampton Roads Sanitation District (HRSD)
in Virginia Beach, Virginia. These aquifer recharge programs
comprise solutions to saltwater intrusion, groundwater availability,
contamination of surface water from nutrient-laden ocean outfalls,
land subsidence and sea-level rise. There are many other programs
that have also been implemented in the states of Texas, Arizona and
Florida, to name a few.
As we consider the impacts of water scarcity on our water
resources, we can appreciate the importance of effectively managing
aquifer systems. How do we stay ahead of these issues and other
pressing water challenges? We must continue to engage with the
water resources community to exchange ideas and progressive
solutions. The American Water Resources Association (AWRA)
will provide such an opportunity during the upcoming 2017
International Conference on "Cutting-Edge Solutions to Wicked
Water Problems," which will take place in Tel Aviv, Israel, September
10 - 11. AWRA, in collaboration with the Water Research Center of
Tel Aviv University, will foster a dialogue on how water managers,
engineers, scientists and policy makers are working together
to develop and implement solutions to the most-pressing water
challenges.
Israel's location in a semi-arid region has allowed the country to
become a leader in the development and application of innovative
water technologies. Tel Aviv provides an ideal location for
exchanging information, knowledge and data among the water
resources community. The meeting has been strategically developed
to coincide with WATEC 2017, Israel's biennial Water Technology
and Environmental Control Exhibition & Conference, which will
also be held in Tel Aviv immediately after our conference.
Please come and join us in Tel Aviv for continued collaboration
and dialogue in support of water resources and AWRA's goal to
provide Community, Conversations and Connections. See you in
Tel Aviv! ■
Rafael E. Frias, III can be reached at President@awra.org.
Volume 19 * Number 5 www.awra.org * 5


http://www.awra.org

Table of Contents for the Digital Edition of Water Resources - IMPACT - September 2017

President’s Message
Growing Up…with Managed Aquifer Recharge
Aquifer Storage and Recovery as Means to
The Regulatory Environment of Managed
The ASCE-EWRI Standard Guidelines
Managed Aquifer Recharge:
Managed Aquifer Recharge: A Global Perspective
What’s Up with Water? Sisyphus, Heraclitus and WOTUS
The New Economics of Water: Reducing CO2 Emissions in the Bay Delta Could Reverse Erosion
Domestic Well Aquifer Storage and Recovery Using Seasonal Springs
Philosophy and Ethics: The Rio Grande and the Ganges Rivers: How Human ‘Success’ is Choking the Life out of Two Great River-Spirits
ASR: Aquifer Storage Rescues a Small Water Supply District
Putting Aquifers to Work: MAR Applications in Nutrient Removal
Summer Conference Recap
Harvesting Glacial Meltwater with Managed Aquifer Recharge
AWRA State Section and Student Chapter News
In Memoriam: Peter E. Black
Herbert Scholarship Award Recipients for 2017-2018 Announced
August JAWRA Highlights
2017-2018 Editorial Calendar
Water Resources - IMPACT - September 2017 - intro
Water Resources - IMPACT - September 2017 - cover1
Water Resources - IMPACT - September 2017 - cover2
Water Resources - IMPACT - September 2017 - 3
Water Resources - IMPACT - September 2017 - 4
Water Resources - IMPACT - September 2017 - President’s Message
Water Resources - IMPACT - September 2017 - Growing Up…with Managed Aquifer Recharge
Water Resources - IMPACT - September 2017 - 7
Water Resources - IMPACT - September 2017 - Aquifer Storage and Recovery as Means to
Water Resources - IMPACT - September 2017 - 9
Water Resources - IMPACT - September 2017 - 10
Water Resources - IMPACT - September 2017 - The Regulatory Environment of Managed
Water Resources - IMPACT - September 2017 - 12
Water Resources - IMPACT - September 2017 - 13
Water Resources - IMPACT - September 2017 - The ASCE-EWRI Standard Guidelines
Water Resources - IMPACT - September 2017 - 15
Water Resources - IMPACT - September 2017 - 16
Water Resources - IMPACT - September 2017 - Managed Aquifer Recharge:
Water Resources - IMPACT - September 2017 - 18
Water Resources - IMPACT - September 2017 - 19
Water Resources - IMPACT - September 2017 - Managed Aquifer Recharge: A Global Perspective
Water Resources - IMPACT - September 2017 - 21
Water Resources - IMPACT - September 2017 - 22
Water Resources - IMPACT - September 2017 - 23
Water Resources - IMPACT - September 2017 - 24
Water Resources - IMPACT - September 2017 - 25
Water Resources - IMPACT - September 2017 - 26
Water Resources - IMPACT - September 2017 - 27
Water Resources - IMPACT - September 2017 - 28
Water Resources - IMPACT - September 2017 - 29
Water Resources - IMPACT - September 2017 - What’s Up with Water? Sisyphus, Heraclitus and WOTUS
Water Resources - IMPACT - September 2017 - 31
Water Resources - IMPACT - September 2017 - The New Economics of Water: Reducing CO2 Emissions in the Bay Delta Could Reverse Erosion
Water Resources - IMPACT - September 2017 - Philosophy and Ethics: The Rio Grande and the Ganges Rivers: How Human ‘Success’ is Choking the Life out of Two Great River-Spirits
Water Resources - IMPACT - September 2017 - ASR: Aquifer Storage Rescues a Small Water Supply District
Water Resources - IMPACT - September 2017 - 35
Water Resources - IMPACT - September 2017 - Summer Conference Recap
Water Resources - IMPACT - September 2017 - 37
Water Resources - IMPACT - September 2017 - AWRA State Section and Student Chapter News
Water Resources - IMPACT - September 2017 - In Memoriam: Peter E. Black
Water Resources - IMPACT - September 2017 - Herbert Scholarship Award Recipients for 2017-2018 Announced
Water Resources - IMPACT - September 2017 - 41
Water Resources - IMPACT - September 2017 - 2017-2018 Editorial Calendar
Water Resources - IMPACT - September 2017 - cover3
Water Resources - IMPACT - September 2017 - cover4
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