Groundwater status and trends for the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho

Download or read book Groundwater status and trends for the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho written by Erick R. Burns and published by CreateSpace. This book was released on 2012 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well information and groundwater-level measurements for the Columbia Plateau Regional Aquifer System in Washington, Oregon, and Idaho, were compiled from data provided by the U.S. Geological Survey and seven other organizations. From the full set of about 60,000 wells and 450,000 water-level measurements a subset of 761 wells within the aquifers of the Columbia River Basalt Group then was used to develop simple linear groundwater trend map for 1968-2009.