Water Resources - IMPACT - September 2017 - 24

F E AT U R E

ASR: Aquifer Storage
Rescues a Small Water
Supply District
Bob Mansfield

Figure 1: The ASR wellhouse, restricted to only five feet in height, is the only surface expression of the underlying six million gallon storage
capability. Photo by Bob Mansfield.

T

he McNulty Water People's Utility District (PUD) in Oregon had
a problem. The PUD provides water to over 2,000 customers
and the ever-increasing demand from residential users and
expansion of business and public service facilities was almost
more than their three aboveground reservoirs could provide. Water
storage for emergency reserves like fire suppression or unanticipated
seasonal demands was already stretched to the limit. Plans were
on the drawing board for an additional million gallon above ground
reservoir, but where to locate it was a dilemma. Oregon coast range
scenery is beautiful and none of the residents like the idea of an
unsightly storage tank spoiling their view.

24 * Water Resources IMPACT

September 2017

Although the PUD didn't know it, the
solution was already in their inventory.
A decade earlier, they drilled a fifth
water supply well, the Robinette, into the
regional Columbia River Basalt Group
(CRBG) aquifer, but the results were
mixed. Production testing confirmed high
transmissivity but recharge was almost
non-existent. Static water levels in other
wells completed in the equivalent zone
recharge in minutes after pumping and
are prolific producers 24/7; however, in
the Robinette, once drawn down, water
levels take years to recover. Apparently
the Robinette encounters an anomalous
compartment of unusually high porosity,



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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