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The following sources of information on possible ground water uses will help in documenting resource use for an aquifer:

  • Topographical maps
  • Field observations
  • Well service records
  • Interviews with water company officials
  • Existing PA/SI reports
  • Correspondence with nearby businesses
  • Correspondence with other nearby entities, such as farms or universities
  • Files from adjacent or nearby CERCLIS sites
  • USGS hydrogeologic investigation reports
  • USGS's Ground Water Site Inventory (GWSI) data base
  • The National Water Well Association's WELLFAX data base
  • Agricultural extension agents
  • Local Chambers of Commerce


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