Water Resources - IMPACT - September 2017 - 16

Evaluation Criteria

Criteria Description

Scoring Measures
High
10 9 8

Medium
7654

Low
321

Hydrogeologic considerations
1. Aquifer storage capacity

Available capacity for recharge

> 0.6 m3/m2

0.1 - 0.6 m3/m2

< 0.1 m3/m2

2. Hydrogeologic suitability
* Unconfined aquifers
* Confined aquifers

Potential rate of aquifer recharge;
- Estimated from aquifer K values
- Estimated from aquifer T values

> 10 m/day
> 300 m2 /day

10 - 100 m/day
100 - 300 m2 /day

< 10 ft/day
< 100 m2 /day

3. Residence time
* Unconfined aquifers
* Confined aquifers

Duration recharged water is in aquifer
Subcrop proximity to alluvial aquifers

> 1 year
> 5 km

4 months - 1 year
1.6 - 5 km

< 4 months
< 1.6 km

Aquifer water quality with respect to
State standards, soil leaching potential

No standards exceeded;
minimal leaching
potential

Limited areas where
standards exceeded;
minor leaching pot.

Large areas where
standards exceeded;
strong leaching pot.

5. Habitat concerns

Presence of threatened and
endangered species habitat;
effect on wetlands

Minor area of T&E
habitat; no effect on
wetlands

Some T&E habitat;
some wetlands affected

Much T&E habitat;
wetlands affected

6. Waterlogging and non-beneficial use

Potential to create high water table &
increased ET by phreatophytes

Low concerns for
waterlogging effects

Medium concerns for
waterlogging effects

High concerns for
waterlogging effects

Proportion of area with
accessible public land,
multiple jurisdictions

Many areas of public
and non-urban land

Some areas of public
and non-urban land

Mostly private and/or
urban land

8. Existing infrastructure

Proximity of infrastructure
(pipelines, ditches, etc.) and
available capacity

Suitable infrastructure
< 10 km from area

Suitable infrastructure
10-30 km from area

Suitable infrastructure
>30 km from area

9. Proximity to areas with demand

Recharge areas nearby to areas of
projected unmet demand in 2030

Near areas with demands
> 4,000 m3/yr

Near areas with demands
of 2,000 - 4,000 m3/yr

Near areas with demands
< 2,000 m3/yr

10. Implementation costs
* Unconfined aquifers
* Confined aquifers

Relative land costs
for construction
Depth to aquifer and proximity to
existing high capacity wells

Low cost< 75 m;
many wells in area

Medium cost
75 - 300 m;
few wells in area

High cost > 300 m;
no wells in area

Environmental considerations
4. Water quality

Implementation considerations
7. Land ownership and land use
considerations

Table 1: Example scoring measures for MAR planning evaluations.

regulations in selected states. The latter is
particularly useful in conveying the wide
range and types of regulations that exist.
Someone involved in the planning of a
MAR project will gain valuable insight
into the types of regulatory questions to be
asking after reviewing this appendix.
The MAR Guidelines were developed
by a committee of professionals with
experience in MAR activities. To be
approved by the ASCE-EWRI, however,
the Guidelines had to follow a detailed
set of peer review requirements. These
included drafting individual sections by
small teams within the Subcommittee and
then having review and discussion with
the full membership during teleconference
calls. Once a section was completed it was
formally balloted on by Subcommittee
members using an ASCE web-based
balloting process. All comments were
responded to by the Editor and were

16 * Water Resources IMPACT

September 2017

reviewed by Subcommittee members.
Sections that did not pass the balloting
were revised and reballoted until they
passed. The full MAR Guidelines are
then submitted to the EWRI Standards
Development Council and then to the
ASCE Codes and Standard Committee for
review and approval. The draft Guidelines
are then reviewed and balloted on by the
ASCE membership at large, with review
comments and associated revisions to
the Guidelines being addressed by the
MAR Guidelines Subcommittee through
balloting. Finally, the ASCE Codes
and Standard Committee approves the
document for publication. This exhaustive
process provides Guidelines to the public
that are of the highest standard.
Currently, the MAR Guidelines are in
the process of being submitted to the EWRI
Standards Development Council. We
anticipate the final, published Guidelines

Note: Criteria 2, 3 and 10 have separate definitions and
scoring measures for unconfined and confined aquifers.

will be available to the public in early 2018.
With its publication, the authors hope that
the ASCE-EWRI MAR Guidelines will
serve as a useful and timely tool to the
water resources community. ■
Gordon McCurry is principal hydrologist at
McCurry Hydrology LLC. McCurry has over
30 years of experience in water resources
evaluations, including quantitative analysis
of groundwater flow and solute transport,
conjunctive use and aquifer remediation.
He is the co-chair and editor for the MAR
Guidelines Subcommittee. Contact:
gmccurry@mccurryhydro.com.

Reference

1 Active contributing members of the MAR
Guidelines Subcommittee include Peter Barkmann,
CPG; Doug Bartlett, RG, CHG; Cortney Brand, PG;
Adam Hutchinson, PG, CPG; Dennis McGrane, PE,
CPG, Gordon McCurry, PhD, PG; Stephanie Moore,
PG; Zhuping Sheng, PhD, PE; Phyllis Stanin, PG, CHG;
and Ben Willardson, PhD, PE, DWRE.



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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