<?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>K. S. Muir</dc:creator>
  <dc:date>1980</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Seawater has intruded the Purisima Formation in the interval 0-100 feet &lt;/span&gt;&lt;span&gt;below sea level in the Soquel-Aptos area. It occurs in the central part of &lt;/span&gt;&lt;span&gt;the area and extends inland about half a mile. &lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span&gt;The potential yields of the two principal aquifers in the Soquel-Aptos area are 4,400 acre-feet per year from the Purisima Formation and 1,500 acre-feet per year from the Aromas Sand. Pumping from the Purisima Formation, averaging about 5,400 acre-feet per year since 1970, has caused water levels along the coast to decline below sea level and has allowed seawater to enter the aquifer. &lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span&gt;Seawater intrusion and ground-water storage could be monitored in all depth zones by expanding the observation-well network to include a number of shallow wells, one deep well inland from the coast, and three deep wells along the coast. &lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/wri8084</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>Seawater intrusion and potential yield of aquifers in the Soquel-Aptos area, Santa Cruz County, California</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>