Water-related data maintained in the National Water Information System (NWIS) are available to the public. This includes:

• Automated Data Processing System (ADAPS) for surface-water data
  
• Ground-Water Site Inventory (GWSI) system for ground-water data
  
• Quality of Water Data (QWDATA) system
  
• State Water Use Data System (SWUDS)
  
• Project-specific data systems developed on web-enabled
• Oracle RDBMS or Geographic Information Systems (GIS)