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International Water Supply Association

International Water Supply Association. Welcome to the Water Supply Registry website. We are here to serve the community with the best database available to see if the water that touches your environment is approved. We have over 20 years of experience in the water business to bring you the most accurate reports in the industry.

Browser support

IWSA has been verified for:

  • MS IExplorer 6.0 SP2
  • MS IExplorer 7.0
  • Firefox 1.0, 1.5, 2.0, 2.x
  • Mozilla 1.6, 1.7, 2.0
  • Netscape 6.2.3, 7.2, 8.1
  • Opera 7.54, 8.5.0, 8.54
  • Konqueror 3.4.0
  • Camino 1.0
  • Safari 1.2, 1.3, 2.0
Is Your Water Safe ?

Does it smell funny or is it cloudy or off-color?  The increase in the reported cases of  chemical spills, leaking oil tanks, toxic waste sites, and pesticide use may make you wonder about the quality and safety of your water. What is in your water ? Check the Water Supply Database.

Contact Us

Is the house your buying or or does your employer have their water registered? Contact Us. ...