<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>J. J. Vaccaro</dc:creator>
  <dc:date>1999</dc:date>
  <dc:description>This report summarizes the results of the U.S. Geological Survey's Regional Aquifer-System Analysis program study of the Columbia Plateau aquifer system. The report describes the geologic framework, hydraulic characteristics of rock materials that compose the aquifer system, ground-water movement in the aquifer units, estimates of ground-water recharge, estimates of ground-water pumpage, and effects of surface-water irrigation and ground-water pumpage. The construction and use of a numerical ground-water flow model is described. Based on model results, the effects of potential water-development practices are presented. The ground-water quality and geochemistry of the aquifer system is then discussed.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/pp1413A</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>Summary of the Columbia Plateau Regional Aquifer-System Analysis, Washington, Oregon, and Idaho</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>