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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 Ground water in the study area is pumped mainly from Quaternary sediment; lesser amounts are withdrawn from Tertiary volcanic materials.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
Year Published:
1996
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Portland, OR
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