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

Water-Resources Investigations Report 96-4111
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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 Ground water in the study area is pumped mainly from Quaternary sediment; lesser amounts are withdrawn from Tertiary volcanic materials.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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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Ground-water pumpage in the Willamette lowland regional aquifer system, Oregon and Washington, 1990
Series title Water-Resources Investigations Report
Series number 96-4111
DOI 10.3133/wri964111
Year Published 1996
Language English
Publisher U.S. Geological Survey
Publisher location Portland, OR
Contributing office(s) Oregon Water Science Center
Description iii, 27 p.
Country United States
State Oregon, Washington
Other Geospatial Willamette Regional Aquifer System
Online Only (Y/N) N
Additional Online Files (Y/N) N