Revision History for USGS Open-File Report 94-465

  Compiled by Claire B. Davidson
  With a section on Use of the Aquifer Database by 
  Helen Doherty


  Aquifer Descriptions from the U.S. Geological Survey 
  Regional Aquifer-System Analysis Program, 1978-1993


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  Added database
  July 13, 2012

  Text posted online at http://pubs.usgs.gov/of/1994/0465/
  December 16, 2010

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