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Scientific Investigations Report 2012–5002


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Evaluation of Long-Term Water-Level Declines in Basalt Aquifers near Mosier, Oregon


Table 4. Summary of simulated recovery resulting from targeted repair of a single confining unit in repair zones 1, 2, and 3 in the Mosier, Oregon study area. 


[Results should be used for comparison only. Value of AR/ASR: The difference between the previous two columns. Abbreviations: AR, artificial recharge; ASR, aquifer storage and recovery]


Layers repaired Percent recovery
Repairs
only 		Repairs
plus
AR/ASR 		Value of
AR/ASR		 Number
of wells
repaired
Pomona flow interior confining unit only 29.9 35.1 5.2 69
Selah interbed only 34.0 40.6 6.6 72
Lolo flow interior confining unit only 8.4 15.0 6.6 57
Rosalia flow interior confining unit only 15.0 21.8 6.8 43
All four layers listed above 54.2 93.1 8.9 82

First posted March 1, 2012

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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