Ground-water pumpage in the Willamette lowland regional aquifer system, Oregon and Washington, 1990

Collins, Charles A.; Broad, Tyson M.

Abstract:

Ground-water pumpage for 1990 was estimated for an area of about 5,700 square miles in northwestern Oregon and southwestern Washington as part of the Puget-Willamette Lowland Regional Aquifer System Analysis study. The estimated total ground-water pumpage in 1990 was about 340,000 acre-feet. Ground water in the study area is pumped mainly from Quaternary sediment; lesser amounts are withdrawn from Tertiary volcanic materials. Large parts of the area are used for agriculture, and about two and one-half times as much ground water was pumped for irrigation as for either public- supply or industrial needs. Estimates of ground- water pumpage for irrigation in the central part of the Willamette Valley were generated by using image-processing techniques and Landsat Thematic Mapper data. Field data and published reports were used to estimate pumpage for irrigation in other parts of the study area. Information on public- supply and industrial pumpage was collected from Federal, State, and private organizations and individuals.

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USGS Numbered Series

ProdID:

26625

Citation Author:

Collins, Charles A.; Broad, Tyson M.

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ENGLISH

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iii, 27 p. :ill., maps (some col.) ;28 cm.

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U.S. Geological Survey ; Information Services [distributor],

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Water-Resources Investigations Report

Citation Series Code:

WRI

Citation Series Number:

96-4111

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Ground-water pumpage in the Willamette lowland regional aquifer system, Oregon and Washington, 1990; 1996; WRI; 96-4111; Collins, Charles A.; Broad, Tyson M.

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1996

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citation/reference

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Ground-water pumpage in the Willamette lowland regional aquifer system, Oregon and Washington, 1990; 1996; WRI; 96-4111; Collins, Charles A.; Broad, Tyson M.