Oregon Water Resources Department

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Oregon Water Resources Department
Westerrn States Water Council November 16,2006

• AR/ASR and Conjunctive Management in Oregon

Presented by Douglas Woodcock Ground Water
Hydrology Manager
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Oregon is a Conjunctive Management State

• Allocate and regulate conjunctively
• Basin plans define allowed uses / areas of use
• USGS cooperative basin studies
• Restrictions on water availability require
  additional tools

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Oregon AR vs. ASR
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Preliminary Assessment for Oregon
Potential for Ground Water Storage
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ASR Projects
Madison Farms
City of Beaverton
City of Portland
City of Pendleton
City of Tigard
Clackamas River
City of Tualatin
McCarty Ranches
City of Salem
Sunrise Water
City of Dallas
Multiple Agriculture Interests
Baker City
Licensed
Proposed
Cancelled
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(No Transcript)
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Preliminary distribution of surface water gains
from ground water
10-50 ft3/s
50-100 ft3/s
100-200 ft3/s
200-300 ft3/s
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(No Transcript)
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Klamath Basin
Distribution of supplemental ground-water pumping
in 2004
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Klamath Basin
Water-Level Change Spring 2001 to Spring 2004
Pumping has resulted in seasonal and year-to-year
water level declines. These declines, and the
potential to affect streamflow, are cause for
concern, and point to the need for quantitative
analysis.
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UpperDeschutes BasinStudy Area
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Estimated Stream Gains and Losses
gt 500 cfs gain 100 to 500 cfs gain 50 to 100 cfs
gain 10 to 50 cfs gain 0 to 10 cfs gain 0 to 10
cfs loss 10 to 20 cfs loss 20 to 50 cfs loss 50
to 100 cfs loss Measurement endpoint
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(No Transcript)
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Oregon Water Resources Department www.wrd.state.or
.us